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Statistical Arbitrage: Algorithmic Trading Insights and Techniques
** by
Andrew Pole

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algorithmic trading, Benoit Mandelbrot, Chance favours the prepared mind, constrained optimization, Dava Sobel, George Santayana, Long Term Capital Management, Louis Pasteur, mandelbrot fractal, market clearing, market fundamentalism, merger arbitrage, pattern recognition, price discrimination, profit maximization, quantitative trading / quantitative ﬁnance, risk tolerance, Sharpe ratio, statistical arbitrage, statistical model, stochastic volatility, systematic trading, transaction costs

The language of mathematical models compounds the unfamiliarity of the notions, generating a sense of disquiet, a fear of lack of understanding. In Statistical Arbitrage, Pole has given his audience a didactic tour of the basic principles of statistical arbitrage, eliminating opacity at the Statistical Arbitrage 101 level. In the 1980s and early 1990s, Stat. Arb. 101 was, for the most part, all there was (exceptions such as D.E. Shaw and Renaissance aside). Today, more than a decade later, there is a much more extensive and complex world of statistical arbitrage. Foreword xxi This is not unlike the natural world, which is now populated by incredibly complex biological organisms after four billion years of evolution. Yet the simplest organisms thrive everywhere and still make up by far the largest part of the planet’s biomass. So is it true in statistical arbitrage, where the basics underpin much of contemporary practice.

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Foreword reversion in prices, as in much of human activity, is a M ean powerful and fundamental force, driving systems and markets to homeostatic relationships. Starting in the early 1980s, statistical arbitrage was a formal and successful attempt to model this behavior in the pursuit of profit. Understanding the arithmetic of statistical arbitrage (sometimes abbreviated as stat. arb.) is a cornerstone to understanding the development of what has come to be known as complex financial engineering and risk modeling. The trading strategy referred to as statistical arbitrage is generally regarded as an opaque investment discipline. The view is that it is being driven by two complementary forces, both deriving from the core nature of the discipline: the vagueness of practitioners and the lack of quantitative knowledge on the part of investors. Statistical arbitrage exploits mathematical models to generate returns from systematic movements in securities prices.

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Chapters 8 and 9 tell of the midlife crisis of statistical arbitrage. The roiling of United States financial markets for many months, beginning with the Enron debacle in 2000 and running through the terrorist attacks of 2001 and what Pole calls ‘‘an appalling litany’’ of corporate misconduct, is dissected for anticipated impact on statistical arbitrage performance. Adding to that mix have been technical changes in the markets, including decimalization and the decline of independent specialists on the floor of the NYSE. Pole draws a clear picture of why statistical arbitrage performance was disrupted. Very clearly the impression is made that the disruption was not terminal. Chapters 10 and 11 speak to the arriving future of statistical arbitrage. Trading algorithms, at first destroyers of classical stat. arb. are now, Pole argues, progenitors of new, systematically exploitable opportunities.

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High-Frequency Trading: A Practical Guide to Algorithmic Strategies and Trading Systems
** by
Irene Aldridge

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algorithmic trading, asset allocation, asset-backed security, automated trading system, backtesting, Black Swan, Brownian motion, business process, capital asset pricing model, centralized clearinghouse, collapse of Lehman Brothers, collateralized debt obligation, collective bargaining, computerized trading, diversification, equity premium, fault tolerance, financial intermediation, fixed income, high net worth, implied volatility, index arbitrage, information asymmetry, interest rate swap, inventory management, law of one price, Long Term Capital Management, Louis Bachelier, margin call, market friction, market microstructure, martingale, Myron Scholes, New Journalism, p-value, paper trading, performance metric, profit motive, purchasing power parity, quantitative trading / quantitative ﬁnance, random walk, Renaissance Technologies, risk tolerance, risk-adjusted returns, risk/return, Sharpe ratio, short selling, Small Order Execution System, statistical arbitrage, statistical model, stochastic process, stochastic volatility, systematic trading, trade route, transaction costs, value at risk, yield curve, zero-sum game

Gatev, Goetzmann, and Rouwenhorst (2006) document that the out-of-sample back tests conducted on the daily equity data from 1967 to 1997 using their stat-arb strategy delivered Sharpe ratios well in excess of 4. High-frequency stat-arb delivers even higher performance numbers. PRACTICAL APPLICATIONS OF STATISTICAL ARBITRAGE General Considerations Most common statistical arbitrage strategies relying solely on statistical relationships with no economic background produce fair results, but these Statistical Arbitrage in High-Frequency Settings 189 relationships often prove to be random or spurious. A classic example of a spurious relationship is the relationship between time as a continuous variable and the return of a particular stock; all publicly listed firms are expected to grow with time, and while the relationship produces a highly significant statistical dependency, it can hardly be used to make meaningful predictions about future values of equities.

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HG4529.A43 2010 332.64–dc22 2009029276 Printed in the United States of America 10 9 8 7 6 5 4 3 2 1 To my family Contents Acknowledgments xi CHAPTER 1 Introduction 1 CHAPTER 2 Evolution of High-Frequency Trading 7 Financial Markets and Technological Innovation Evolution of Trading Methodology CHAPTER 3 Overview of the Business of High-Frequency Trading 7 13 21 Comparison with Traditional Approaches to Trading 22 Market Participants 24 Operating Model 26 Economics 32 Capitalizing a High-Frequency Trading Business 34 Conclusion 35 CHAPTER 4 Financial Markets Suitable for High-Frequency Trading 37 Financial Markets and Their Suitability for High-Frequency Trading Conclusion 38 47 v vi CHAPTER 5 CONTENTS Evaluating Performance of High-Frequency Strategies 49 Basic Return Characteristics 49 Comparative Ratios 51 Performance Attribution 57 Other Considerations in Strategy Evaluation 58 Conclusion 60 CHAPTER 6 Orders, Traders, and Their Applicability to High-Frequency Trading 61 Order Types 61 Order Distributions 70 Conclusion 73 CHAPTER 7 Market Inefficiency and Profit Opportunities at Different Frequencies 75 Predictability of Price Moves at High Frequencies 78 Conclusion 89 CHAPTER 8 Searching for High-Frequency Trading Opportunities 91 Statistical Properties of Returns 91 Linear Econometric Models 97 Volatility Modeling 102 Nonlinear Models 108 Conclusion 114 CHAPTER 9 Working with Tick Data 115 Properties of Tick Data 116 Quantity and Quality of Tick Data 117 Bid-Ask Spreads 118 Contents vii Bid-Ask Bounce 120 Modeling Arrivals of Tick Data 121 Applying Traditional Econometric Techniques to Tick Data 123 Conclusion 125 CHAPTER 10 Trading on Market Microstructure: Inventory Models 127 Overview of Inventory Trading Strategies 129 Orders, Traders, and Liquidity 130 Proﬁtable Market Making 134 Directional Liquidity Provision 139 Conclusion 143 CHAPTER 11 Trading on Market Microstructure: Information Models 145 Measures of Asymmetric Information 146 Information-Based Trading Models 149 Conclusion 164 CHAPTER 12 Event Arbitrage 165 Developing Event Arbitrage Trading Strategies 165 What Constitutes an Event? 167 Forecasting Methodologies 168 Tradable News 173 Application of Event Arbitrage 175 Conclusion 184 CHAPTER 13 Statistical Arbitrage in High-Frequency Settings 185 Mathematical Foundations 186 Practical Applications of Statistical Arbitrage 188 Conclusion 199 viii CONTENTS CHAPTER 14 Creating and Managing Portfolios of High-Frequency Strategies 201 Analytical Foundations of Portfolio Optimization 202 Eﬀective Portfolio Management Practices 211 Conclusion 217 CHAPTER 15 Back-Testing Trading Models 219 Evaluating Point Forecasts 220 Evaluating Directional Forecasts 222 Conclusion 231 CHAPTER 16 Implementing High-Frequency Trading Systems 233 Model Development Life Cycle 234 System Implementation 236 Testing Trading Systems 246 Conclusion 249 CHAPTER 17 Risk Management 251 Determining Risk Management Goals 252 Measuring Risk 253 Managing Risk 266 Conclusion 271 CHAPTER 18 Executing and Monitoring High-Frequency Trading 273 Executing High-Frequency Trading Systems 274 Monitoring High-Frequency Execution 280 Conclusion 281 Contents ix CHAPTER 19 Post-Trade Profitability Analysis 283 Post-Trade Cost Analysis 284 Post-Trade Performance Analysis 295 Conclusion 301 References 303 About the Web Site 323 About the Author 325 Index 327 Acknowledgments This book was made possible by a terrific team at John Wiley & Sons: Deb Englander, Laura Walsh, Bill Falloon, Tiffany Charbonier, Cristin RiffleLash, and Michael Lisk.

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CONCLUSION Event arbitrage strategies utilize high-frequency trading since price equilibrium is reached only after market participants have reacted to the news. Short trading windows and estimation of the impact of historical announcements enable profitable trading decisions surrounding market announcements. CHAPTER 13 Statistical Arbitrage in High-Frequency Settings tatistical arbitrage (stat-arb) exploded on the trading scene in the late 1990s, with PhDs in physics and other “hard” sciences reaping double-digit returns using simple statistical phenomena. Since then, statistical arbitrage has been both hailed and derided. The advanced returns generated before 2007 by many stat-arb shops popularized the technique. Yet some blame stat-arb traders for destabilizing the markets in the 2007 and 2008 crises. Stat-arb can lead to a boon in competent hands and a bust in semi-proficient applications.

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A Man for All Markets
** by
Edward O. Thorp

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3Com Palm IPO, Albert Einstein, asset allocation, beat the dealer, Bernie Madoff, Black Swan, Black-Scholes formula, Brownian motion, buy low sell high, carried interest, Chuck Templeton: OpenTable, Claude Shannon: information theory, cognitive dissonance, collateralized debt obligation, compound rate of return, Credit Default Swap, credit default swaps / collateralized debt obligations, diversification, Edward Thorp, Erdős number, Eugene Fama: efficient market hypothesis, financial innovation, George Santayana, German hyperinflation, Henri Poincaré, high net worth, High speed trading, index arbitrage, index fund, interest rate swap, invisible hand, Jarndyce and Jarndyce, Jeff Bezos, John Meriwether, John Nash: game theory, Kenneth Arrow, Livingstone, I presume, Long Term Capital Management, Louis Bachelier, margin call, Mason jar, merger arbitrage, Murray Gell-Mann, Myron Scholes, NetJets, Norbert Wiener, passive investing, Paul Erdős, Paul Samuelson, Pluto: dwarf planet, Ponzi scheme, price anchoring, publish or perish, quantitative trading / quantitative ﬁnance, race to the bottom, random walk, Renaissance Technologies, RFID, Richard Feynman, Richard Feynman, risk-adjusted returns, Robert Shiller, Robert Shiller, rolodex, Sharpe ratio, short selling, Silicon Valley, statistical arbitrage, stem cell, survivorship bias, The Myth of the Rational Market, The Predators' Ball, the rule of 72, The Wisdom of Crowds, too big to fail, Upton Sinclair, value at risk, Vanguard fund, Vilfredo Pareto, Works Progress Administration

People at Morgan Stanley began leaving the quantitative systems group that was in charge of statistical arbitrage. Among those to depart was David E. Shaw, a former professor of computer science at Columbia University. He had been wooed to Wall Street to use computers to find opportunities in the market. In the spring of 1988, Shaw spent the day in Newport Beach. We discussed his plan to launch an improved statistical arbitrage product. PNP was able to put up the $10 million he wanted for start-up, and we were impressed by his ideas but decided not to go ahead because we already had a good statistical arbitrage product. He found other backing, creating one of the most successful analytic firms on Wall Street, and later would become a member of the president’s science advisory committee. Using statistical arbitrage as a core profit center, he expanded into related hedging and arbitrage areas (the PNP business plan again), and hired large numbers of smart quantitative types from academia.

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For that graph of XYZ’s performance, see Thorp, Edward O., “Statistical Arbitrage, Part VI,” Wilmott, July 2005, pp. 34–36. had ever experienced Reportedly, Simons’s secretive Renaissance Partners had a similar experience in August of 2008, losing 8 percent or so in a few days, then rebounding to make more than 100 percent for the year. employees, only six Since the six people in my office also had other responsibilities, we had only 3.5 “full-time equivalents” on the project. in statistical arbitrage Firms doing statistical arbitrage, such as the hedge fund group Citadel, already had in place most of the technology, talent, and expertise needed later to create and implement high frequency trading (HFT). For an account of HFT, see the book Flash Boys by Michael Lewis; In 2005, three years after we went out of the statistical arbitrage business, Steve and I worked with Jerry Baesel, who was then at Morgan Stanley Asset Management, to see if it was worth restarting.

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At $30 billion in 2014, Bezos was the fifteenth richest American. As PNP began winding down in late 1988, despite the stress we developed yet another approach to statistical arbitrage that was simpler and more powerful. But as PNP phased out, I wanted simplicity. We focused on two areas that could be managed by a small staff, Japanese warrant hedging and investing in other hedge funds. Both went well. I had no immediate plans to use our new statistical arbitrage technique and I expected that continuing innovations by investors using related systems would, as is the way of things, gradually erode its value. Four years passed, and then, my friend and former partner Jerry Baesel came to me with tales of extraordinary returns from statistical arbitrage. Besides D. E. Shaw & Company, the practitioners included former Morgan Stanley quants who were starting their own hedge funds, and some of my past PNP associates.

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Quantitative Trading: How to Build Your Own Algorithmic Trading Business
** by
Ernie Chan

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algorithmic trading, asset allocation, automated trading system, backtesting, Black Swan, Brownian motion, business continuity plan, compound rate of return, Edward Thorp, Elliott wave, endowment effect, fixed income, general-purpose programming language, index fund, John Markoff, Long Term Capital Management, loss aversion, p-value, paper trading, price discovery process, quantitative hedge fund, quantitative trading / quantitative ﬁnance, random walk, Ray Kurzweil, Renaissance Technologies, risk-adjusted returns, Sharpe ratio, short selling, statistical arbitrage, statistical model, survivorship bias, systematic trading, transaction costs

(In fact, one can become quite poor trading complex mortgage-backed securities, as the financial crisis of 2007–08 and the demise of Bear Stearns have shown.) The kind of quantitative trading I focus on is called statistical arbitrage trading. Statistical arbitrage deals with the simplest financial instruments: stocks, futures, and sometimes currencies. One does not need an advanced degree to become a statistical arbitrage trader. If you have taken a few high school–level courses in math, statistics, computer programming, or economics, you are probably as qualified as anyone to tackle some of the basic statistical arbitrage strategies. P1: JYS c01 JWBK321-Chan September 24, 2008 13:44 Printer: Yet to come The Whats, Whos, and Whys of Quantitative Trading 3 Okay, you say, you don’t need an advanced degree, but surely it gives you an edge in statistical arbitrage trading? Not necessarily. I received a PhD from one of the top physics departments of the world (Cornell’s).

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This seemingly innocuous change has had a dramatic impact on the market structure, which is particularly negative for the profitability of statistical arbitrage strategies. The reason for this may be worthy of a book unto itself. In a nutshell, decimalization reduces frictions in the price discovery process, while statistical arbitrageurs mostly act as market makers and derive their profits from frictions and inefficiencies in this process. (This is the explanation given by Dr. Andrew Sterge in a Columbia University financial engineering seminar titled “Where Have All the Stat Arb Profits Gone?” in January 2008. Other industry practitioners have made the same point to me in private conversations.) Hence, we can expect backtest performance of statistical arbitrage strategies prior to 2001 to be far superior to their present-day performance. The other regime shift is relevant if your strategy shorts stocks.

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There is one usual caveat, however. All this is based on the Gaussian assumption of return distributions. (See discussions in Chapter 6 on this issue.) Since the actual returns distributions have fat tails, one should be quite wary of using too much leverage on normally low-beta stocks. SUMMARY This book has been largely about a particular type of quantitative trading called statistical arbitrage in the investment industry. Despite this fancy name, statistical arbitrage is actually far simpler than trading derivatives (e.g., options) or fixed-income instruments, both conceptually and mathematically. I have described a large part of the statistical arbitrageur’s standard arsenal: mean reversion and momentum, regime switching, stationarity and cointegration, arbitrage pricing theory or factor model, seasonal trading models, and, finally, high-frequency trading.

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Hedge Fund Market Wizards
** by
Jack D. Schwager

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asset-backed security, backtesting, banking crisis, barriers to entry, beat the dealer, Bernie Madoff, Black-Scholes formula, British Empire, Claude Shannon: information theory, cloud computing, collateralized debt obligation, commodity trading advisor, computerized trading, credit crunch, Credit Default Swap, credit default swaps / collateralized debt obligations, delta neutral, diversification, diversified portfolio, Edward Thorp, family office, financial independence, fixed income, Flash crash, hindsight bias, implied volatility, index fund, intangible asset, James Dyson, Long Term Capital Management, margin call, market bubble, market fundamentalism, merger arbitrage, money market fund, oil shock, pattern recognition, pets.com, Ponzi scheme, private sector deleveraging, quantitative easing, quantitative trading / quantitative ﬁnance, Right to Buy, risk tolerance, risk-adjusted returns, risk/return, riskless arbitrage, Rubik’s Cube, Sharpe ratio, short selling, statistical arbitrage, Steve Jobs, systematic trading, technology bubble, transaction costs, value at risk, yield curve

But Princeton Newport was doing so well on a risk-adjusted basis with the strategies it had already that we put the statistical arbitrage strategy aside. It wasn’t clear that the marginal improvement that could have been obtained by adding statistical arbitrage to the existing strategies warranted diverting the resources that would have been needed for its implementation. When did you turn back to it again? In 1985, we placed an ad in the Wall Street Journal looking for people who had reliable ideas that would produce provable excess returns. One of the calls we received in response to that ad was from Gerry Bamberger, who turned out to be the person who had discovered statistical arbitrage at Morgan Stanley. My recollection is that he developed the strategy around 1982 and was eventually shouldered aside by Nunzio Tartaglia who was his immediate superior.

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It was running at about 8 percent annualized, which is not too bad in a 2 percent world, but not good enough to make me want to go back and do it. What was your involvement with David Shaw, who was another relatively early practitioner of statistical arbitrage? In 1988, David Shaw had left Solomon and was looking for someone to fund him in a statistical arbitrage startup. I didn’t know exactly what he wanted when he came out here, but we talked for about six hours, and it seemed that his strategy was redundant with ours. So we parted on friendly terms. So it was basically a matter of you both realizing that you were working on the same thing, and there really wasn’t a match. That is exactly right. What did you do after you shut down the statistical arbitrage fund in 2002? I managed my investments in other people’s hedge funds. Do you have any recommendations on investing in hedge funds? I don’t have any recommendations now because I have run low on hedge fund candidates.

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During 1990 to 1992, he focused primarily on trading Japanese warrants, which he found to be broadly mispriced. He eventually was forced to abandon this strategy when the dealers dramatically widened their bid/ask spreads, wiping out about half the potential profit on each trade. Thorp had successfully traded a statistical arbitrage strategy since the mid-1980s. In 1992, he was asked to run the strategy for a large institutional client. Two years later, he started his second hedge fund, Ridgeline Partners, to open the statistical arbitrage strategy to other investors. Ridgeline traded very actively, averaging about 6 million shares per day and accounting for about ½ percent of total NYSE volume. Thorp ran the strategy over 10 years. He averaged a 21 percent average annual compounded return with only a 7 percent annualized volatility—another remarkable track record.

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Market Sense and Nonsense
** by
Jack D. Schwager

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3Com Palm IPO, asset allocation, Bernie Madoff, Brownian motion, collateralized debt obligation, commodity trading advisor, computerized trading, conceptual framework, correlation coefficient, Credit Default Swap, credit default swaps / collateralized debt obligations, Daniel Kahneman / Amos Tversky, diversification, diversified portfolio, fixed income, high net worth, implied volatility, index arbitrage, index fund, London Interbank Offered Rate, Long Term Capital Management, margin call, market bubble, market fundamentalism, merger arbitrage, negative equity, pattern recognition, performance metric, pets.com, Ponzi scheme, quantitative trading / quantitative ﬁnance, random walk, risk tolerance, risk-adjusted returns, risk/return, Robert Shiller, Robert Shiller, selection bias, Sharpe ratio, short selling, statistical arbitrage, statistical model, survivorship bias, transaction costs, two-sided market, value at risk, yield curve

A classic example of this phenomenon was the meltdown of statistical arbitrage funds in August 2007. Statistical arbitrage is a market neutral, mean reversion strategy that uses mathematical models to identify short-term anomalies in stock movements, balancing sales of stocks witnessing upside deviations (as defined by its models) with purchases of stocks witnessing downside deviations. Since the strategy will normally embed multidimensional neutrality (e.g., market, sector, capitalization, region, etc.), significant leverage is typically employed to achieve desired return levels. As a group, statistical arbitrage funds will often have significant overlap in the stocks they are long and short. In August 2007, large liquidations by some statistical arbitrage funds caused other funds in this strategy to suddenly see their portfolios behaving perversely, with longs falling and shorts simultaneously rallying.

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If, as occurred in 2008, they need to liquidate at the same time because of a flight-to-safety psychology in the market, the huge imbalance between supply and demand can result in managers being forced to liquidate positions at deeply discounted prices. Statistical arbitrage. The premise underlying statistical arbitrage is that short-term imbalances in buy and sell orders cause temporary price distortions, which provide short-term trading opportunities. Statistical arbitrage is a mean-reversion strategy that seeks to sell excessive strength and buy excessive weakness based on statistical models that define when short-term price moves in individual equities are considered out of line relative to price moves in related equities. The origin of the strategy was a subset of statistical arbitrage called pairs trading. In pairs trading, the price ratios of closely related stocks are tracked (e.g., Ford and General Motors), and when the mathematical model indicates that one stock has gained too much versus the other (either by rising more or by declining less), it is sold and hedged by the purchase of the related equity in the pair.

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Pairs trading was successful in its early years, but lost its edge as too many proprietary trading groups and hedge funds employed similar strategies. Today’s statistical arbitrage models are far more complex, simultaneously trading hundreds or thousands of securities based on their relative price movements and correlations, subject to the constraint of maintaining multidimensional market neutrality (e.g., market, sector, etc.). Although mean reversion is typically at the core of this strategy, statistical arbitrage models may also incorporate other types of uncorrelated or even inversely correlated strategies, such as momentum and pattern recognition. Statistical arbitrage involves highly frequent trading activity, with trades lasting between seconds and days. Fixed income arbitrage. This strategy seeks to profit from perceived mispricings between different interest rate instruments.

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Fortune's Formula: The Untold Story of the Scientific Betting System That Beat the Casinos and Wall Street
** by
William Poundstone

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Albert Einstein, anti-communist, asset allocation, beat the dealer, Benoit Mandelbrot, Black-Scholes formula, Brownian motion, buy low sell high, capital asset pricing model, Claude Shannon: information theory, computer age, correlation coefficient, diversified portfolio, Edward Thorp, en.wikipedia.org, Eugene Fama: efficient market hypothesis, high net worth, index fund, interest rate swap, Isaac Newton, Johann Wolfgang von Goethe, John Meriwether, John von Neumann, Kenneth Arrow, Long Term Capital Management, Louis Bachelier, margin call, market bubble, market fundamentalism, Marshall McLuhan, Myron Scholes, New Journalism, Norbert Wiener, offshore financial centre, Paul Samuelson, publish or perish, quantitative trading / quantitative ﬁnance, random walk, risk tolerance, risk-adjusted returns, Robert Shiller, Robert Shiller, Ronald Reagan, Rubik’s Cube, short selling, speech recognition, statistical arbitrage, The Predators' Ball, The Wealth of Nations by Adam Smith, transaction costs, traveling salesman, value at risk, zero-coupon bond, zero-sum game

By 1987 it was down to 15 percent, no longer competitive with Princeton-Newport’s other opportunities. The problem was apparently competition. Tartaglia continued to expand Morgan Stanley’s statistical arbitrage operation. By 1988 Tartaglia’s team was buying and selling $900 million worth of stock. Bamberger would often be trying to buy the same temporarily bargain-priced stock as Morgan Stanley, driving up the price. This cut into the profit. Bamberger, who had made a good deal of money, decided to retire. BOSS was closed down. Finally, according to stories, Morgan Stanley’s operation suffered a substantial loss. The bank closed down its statistical arbitrage business too. Thorp continued to tinker with statistical arbitrage. He replaced Bamberger’s division by industry groups with a more flexible “factor analysis” system. The system analyzed stocks by how their price moves correlated with factors such as the market indexes, inflation, the price of gold, and so on.

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They are less likely to accept an apparent winning strategy that might be a mere statistical fluke.” Each statistical arbitrage operation competes against the others to scoop up the so-called free money created by market inefficiency. All successful operations revise their software constantly to keep pace with changing markets and the changing nature of their competition. The inexplicable aspect of Thorp’s achievement was his continuing ability to discover new market inefficiencies, year after year, as old ones played out. This is a talent, like discovering new theorems or jazz improvisations. Statistical arbitrage is nonetheless a few degrees easier to understand than the intuitive trading of more conventional portfolio managers. It is an algorithm, the trades churned out by lines of computer code. The success of statistical arbitrage operations makes a case that there are persistent classes of market inefficiencies and that Kelly-criterion-guided money management can use them to achieve higher-than-market return without ruinous risk.

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It is based on so many factors that it is hard for an investor, or anyone else, to understand what a fund manager is doing. You are unlikely to convince a skeptic that a manager’s return is not just luck when no one else can understand the logic of his stock picks. Indicators Project ONE OF THE BEST CASES for beating the stock market involves a scheme called statistical arbitrage. To make money in the market, you have to buy low and sell high. Why not use a computer to tell you which stocks are low and which are high? In concept, that is statistical arbitrage. Fundamental analysts look at scores of factors, many of them numerical, in deciding which stocks to buy. If there is any validity to this process, then it ought to be possible to automate it. Ed Thorp began pursuing this idea as early as 1979. It emerged as one of the discoveries of what became known as the “Indicators Project” at Princeton-Newport.

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A Demon of Our Own Design: Markets, Hedge Funds, and the Perils of Financial Innovation
** by
Richard Bookstaber

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affirmative action, Albert Einstein, asset allocation, backtesting, beat the dealer, Black Swan, Black-Scholes formula, Bonfire of the Vanities, butterfly effect, commoditize, commodity trading advisor, computer age, computerized trading, disintermediation, diversification, double entry bookkeeping, Edward Lorenz: Chaos theory, Edward Thorp, family office, financial innovation, fixed income, frictionless, frictionless market, George Akerlof, implied volatility, index arbitrage, intangible asset, Jeff Bezos, John Meriwether, London Interbank Offered Rate, Long Term Capital Management, loose coupling, margin call, market bubble, market design, merger arbitrage, Mexican peso crisis / tequila crisis, moral hazard, Myron Scholes, new economy, Nick Leeson, oil shock, Paul Samuelson, Pierre-Simon Laplace, quantitative trading / quantitative ﬁnance, random walk, Renaissance Technologies, risk tolerance, risk/return, Robert Shiller, Robert Shiller, rolodex, Saturday Night Live, selection bias, shareholder value, short selling, Silicon Valley, statistical arbitrage, The Market for Lemons, time value of money, too big to fail, transaction costs, tulip mania, uranium enrichment, William Langewiesche, yield curve, zero-coupon bond, zero-sum game

And well they 183 ccc_demon_165-206_ch09.qxd 7/13/07 2:44 PM Page 184 A DEMON OF OUR OWN DESIGN should, because someone else is getting saddled with the risk of the position, someone who most likely did not want to take on that position at the existing market price. Thus the demand for liquidity not only is the source of most price movement; it is at the root of most trading strategies. It is this liquidity-oriented, tectonic market shift that has made statistical arbitrage so powerful. Statistical arbitrage originated in the 1980s from the hedging demand of Morgan Stanley’s equity block-trading desk, which at the time was the center of risk taking on the equity trading floor. Like other broker-dealers, Morgan Stanley continually faced the problem of how to execute large block trades efficiently without suffering a price penalty. Often, major institutions discover they can clear a large block trade only at a large discount to the posted price.

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But using statistical analysis he could show in the aggregate a clear tendency toward mean reversion— the stocks would get back in line with their history. There was money to be made, but the key was to hold many, many pairs to average out the market effects. The pairwise stock trades that form the elements of statistical arbitrage trading in the equity market are just one more flavor of spread trades. On an individual basis, they’re not very good spread trades. It is the diversification that comes from holding many pairs that makes this strategy a success. But even then, although its name suggests otherwise, statistical arbitrage is a spread trade, not a true arbitrage trade. Bamberger pitched his strategy, and surprisingly, given the politics of the firm, the equity division was willing to let him give it a try. He got a desk just to the side of the futures traders, mounted with monitors that tracked every pair: Ford and GM, American Airlines and United Airlines, International Paper and Georgia-Pacific, and so on.

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O’Connor’s Partnership was making hundreds of millions of dollars by applying the Black-Scholes formula to options in the nascent Chicago Board Options Exchange in the late 1970s and early 1980s, with a cadre of young traders grabbing their pricing sheets at the start of the day and taking their posts along the CBOE trading floor to apply delta hedges to mispriced options. By the mid-1980s, the writing was on the wall for margin contractions in the floor marketmaking business, and O’Connor’s sold itself to Swiss Bank. On the heels of the cash-futures and index arbitrage opportunities came statistical arbitrage, which was the first to emerge in a hedge fund structure. In 1985, the first statistical arbitrage strategy was developed at Morgan Stanley, by Gerry Bamberger, a young information technology (IT) person who had been assigned to work on some hedging issues on the equity trading floor. As we discussed earlier, Bamberger developed a pairs trading strategy that resulted in a burgeoning business for Morgan Stanley and spawned D.E. Shaw and a host of other stat arb firms.

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Efficiently Inefficient: How Smart Money Invests and Market Prices Are Determined
** by
Lasse Heje Pedersen

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activist fund / activist shareholder / activist investor, algorithmic trading, Andrei Shleifer, asset allocation, backtesting, bank run, banking crisis, barriers to entry, Black-Scholes formula, Brownian motion, buy low sell high, capital asset pricing model, commodity trading advisor, conceptual framework, corporate governance, credit crunch, Credit Default Swap, currency peg, David Ricardo: comparative advantage, declining real wages, discounted cash flows, diversification, diversified portfolio, Emanuel Derman, equity premium, Eugene Fama: efficient market hypothesis, fixed income, Flash crash, floating exchange rates, frictionless, frictionless market, Gordon Gekko, implied volatility, index arbitrage, index fund, interest rate swap, late capitalism, law of one price, Long Term Capital Management, margin call, market clearing, market design, market friction, merger arbitrage, money market fund, mortgage debt, Myron Scholes, New Journalism, paper trading, passive investing, price discovery process, price stability, purchasing power parity, quantitative easing, quantitative trading / quantitative ﬁnance, random walk, Renaissance Technologies, Richard Thaler, risk-adjusted returns, risk/return, Robert Shiller, Robert Shiller, selection bias, shareholder value, Sharpe ratio, short selling, sovereign wealth fund, statistical arbitrage, statistical model, survivorship bias, systematic trading, technology bubble, time value of money, total factor productivity, transaction costs, value at risk, Vanguard fund, yield curve, zero-coupon bond

The figure shows the percentage spread between the prices of Unilever NV and Unilever PLC computed as PNV/PPLC – 1, where the adjusted prices are expressed in common currency. In 2008, the liquidity problems spread much more broadly around the economy and, in September 2008 a truly systemic liquidity crisis unfolded around the bankruptcy of Lehman Brothers. Ironically, the value/momentum quant equity strategies performed relatively well during 2008. 9.2. STATISTICAL ARBITRAGE Statistical arbitrage (stat arb) strategies are also quantitative, but they are usually less based on an analysis of economic fundamentals and more based on arbitrage relations and statistical relations. Dual-Listed Shares: Siamese Twin Stocks Some stocks are joined at the hip in the sense that their fundamental values are economically linked. A classic example is when two merging companies in different countries decide to retain separate legal identities but function economically as a single firm through an “equalization agreement.”

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Quants build computer systems that generate trading signals based on these relations, carry out portfolio optimization in light of trading costs, and trade using automated execution schemes that route hundreds of orders every few seconds. In other words, trading is done by feeding data into computers that run various programs with human oversight. Some quants focus on high-frequency trading, where they exit a trade within milliseconds or minutes after it was entered. Others focus on statistical arbitrage, that is, trading at a daily frequency based on statistical patterns. Yet others focus on lower frequency trades called fundamental quant (or equity market neutral) investing. Fundamental quant investing considers many of the same factors as discretionary traders, seeking to buy cheap stocks and short sell expensive ones, but the difference is that fundamental quants do so systematically using computer systems.

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Another investment style (as seen in Overview Table III) is liquidity provision, meaning buying securities with high liquidity risk or securities being sold by other investors who demand liquidity. This investment style comes in many shapes and forms, from Griffin buying illiquid convertible bonds to earn a liquidity risk premium, to Paulson buying merger targets being dumped by investors who demand liquidity for fear of event risk, to Soros riding a credit cycle, to Asness providing liquidity through statistical arbitrage trades. Carry trading is the investment style of buying securities with high “carry,” that is, securities that will have a high return if market conditions stay the same (e.g., if prices do not change). For instance, global macro investors are known to pursue the currency carry trade where they invest in currencies with high interest rates, bond traders often prefer high-yielding bonds, equity investors like stocks with high dividend yields, and commodity traders like commodity futures with positive “roll return.”

**
Broken Markets: How High Frequency Trading and Predatory Practices on Wall Street Are Destroying Investor Confidence and Your Portfolio
** by
Sal Arnuk,
Joseph Saluzzi

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algorithmic trading, automated trading system, Bernie Madoff, buttonwood tree, commoditize, computerized trading, corporate governance, cuban missile crisis, financial innovation, Flash crash, Gordon Gekko, High speed trading, latency arbitrage, locking in a profit, Mark Zuckerberg, market fragmentation, Ponzi scheme, price discovery process, price mechanism, price stability, Sergey Aleynikov, Sharpe ratio, short selling, Small Order Execution System, statistical arbitrage, transaction costs, two-sided market, zero-sum game

With that kind of uncertainty, the programs exit their positions and “liquidity provision.” Spreads widen. And sometimes, such as the May 6, 2010 Flash Crash, there is a “liquidity vacuum.” Andy Haldane, the Executive Director of Financial Stability at the Bank of England, in a July 8, 2011 speech titled “The Race to Zero,” described this as “adding liquidity in a monsoon and absorbing it in a drought.”6 Statistical Arbitrage Statistical Arbitrage (AKA, “stat arb”) has been in operation for decades. The type of example most often given is when IBM is trading “rich” in London and “cheap” on the NYSE, the stat arb guys will simultaneously short it in London and buy it back on the NYSE. Oh, if it were only that simple today. Today, the stat arb guys are trading “rich” versus “cheap” in more than 50 fragmented destinations.

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Senator Ted Kaufman Introduction Chapter 1 Broken Markets Why Has Our Stock Market Structure Changed So Drastically? When Did HFT Start? How Did HFT Become So Big? Why Have We Allowed This to Happen? Will There Be Another Market Crash? Where’s the SEC in All This? Endnotes Chapter 2 The Curtain Pulled Back on High Frequency Trading What Is High Frequency Trading, and Who Is Doing It? Market Making Rebate Arbitrage Statistical Arbitrage Market Structure and Latency Arbitrage Momentum Ignition How the World Began to Learn About HFT The SEC’s Round Table on Equity Market Structure—or Sal Goes to Washington 60 Minutes—or Joe Makes It to Primetime Endnotes Chapter 3 Web of Chaos NYSE and the Regionals NASDAQ SOES Instinet Problems for NYSE and NASDAQ Four For-Profit Exchanges Conflicts of Interest Fragmentation The Tale of the Aggregator Endnotes Chapter 4 Regulatory Purgatory Early 1990s Change in Regulations Late 1990s Regulations—Decimalization, Reg NMS, and Demutualization Early 2000s—Reg NMS Endnotes Chapter 5 Regulatory Hangover The Flash Order Controversy The Concept Release on Market Structure...Interrupted The Band-Aid Fixes Endnotes Chapter 6 The Arms Merchants Colocation Private Data Feeds Rebates for Order Flow (The Maker/Taker Model) Not Your Father’s Stock Exchange Endnotes Chapter 7 It’s the Data, Stupid Information for Sale on Hidden Customer Orders Data Theft on Wall Street The Heat Is On Phantom Indexes Machine-Readable News Who Owns the Data?

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They get the data from the stock exchanges, too. Then they trade, capitalizing on those patterns. And, in many cases, the exchanges pay them to trade. In our Big Picture Conference presentation, we spoke about a few types of HFT: • “Market making” rebate arbitrage (we use quotations around “market making” because we really don’t see how it even closely resembles real market making) • Statistical arbitrage • Latency arbitrage • Momentum ignition Market Making Rebate Arbitrage This is probably the largest bucket of HFT. It is the style and strategy especially catered to by all the for-profit exchanges. With the exchanges becoming for-profit, and, in many cases, converting to publicly traded companies, such as the NYSE or NASDAQ, they now care very much about how to keep growing revenues.

**
Getting a Job in Hedge Funds: An Inside Look at How Funds Hire
** by
Adam Zoia,
Aaron Finkel

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backtesting, barriers to entry, collateralized debt obligation, commodity trading advisor, Credit Default Swap, credit default swaps / collateralized debt obligations, discounted cash flows, family office, fixed income, high net worth, interest rate derivative, interest rate swap, Long Term Capital Management, merger arbitrage, offshore financial centre, random walk, Renaissance Technologies, risk-adjusted returns, rolodex, short selling, side project, statistical arbitrage, systematic trading, unpaid internship, value at risk, yield curve, yield management

c01.indd 5 1/10/08 11:00:55 AM 6 Getting a Job in Hedge Funds Table 1.3 Instruments and Styles COMMONLY USED INSTRUMENTS HEDGE FUND STYLES Public Equities Long/Short Quantitative Fixed Income Long Bias Event-Driven/Special Situations Currencies Short Only Value Commodities Arbitrage Trading Oriented Derivatives/Futures Market Neutral Global Macro Private Equity Industry Focus Multi-strategy Convertible Bonds Distressed Geographic Focus Arbitrage Strategies There are various types of arbitrage strategies, and all seek to exploit imbalances between different financial markets such as currencies, commodities, and debt. Some of the more popular hedge fund arbitrage strategies are convertible fixed income, risk, and statistical arbitrage. Convertible Arbitrage This strategy is identified by hedge investing in the convertible securities of a company. To do this, a hedge fund manager would buy the convertible bonds of a company while at the same time selling (or shorting) the company’s common stock. Positions are designed to generate profits from the fixed income security as well as the short sale of stock, while protecting principal from market moves.

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Risk arbitrageurs invest simultaneously in long and short positions in both companies involved in a merger or acquisition. As such, they are typically long the stock of the company being acquired and short the stock of the acquirer. The principal risk is deal risk, should the deal fail to close. Merger arbitrage may hedge against market risk by purchasing Standard & Poor’s (S&P) 500 put options or put option spreads. Statistical Arbitrage Stat arb funds focus on the statistical mispricing of one or more assets based on the expected value of those assets. This is a very quantitative and systematic trading strategy that uses advanced software programs. Note: These funds typically hire PhDs, mathematicians, and/or programming experts. Emerging Markets This strategy involves equity or fixed income investing in emerging markets around the world.

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While most quantitative funds invest in equities, others target fixed-income securities, commodities, currencies, and market indexes. These funds, some of which have billions of dollars in assets, can move the markets in which they invest when an internal buy or sell order is triggered. While quantitative strategies have sometimes produced stellar returns, there have also been some well-known failures of funds using this strategy. Some examples of funds that use quantitative investing strategies are statistical arbitrage, options arbitrage, fixed-income arbitrage, convertible bond arbitrage, mortgagebacked security arbitrage, derivatives arbitrage, equity market neutral, managed futures, and long/short funds. Sector-Specific Funds Some hedge fund managers may use any of the aforementioned strategies, but in doing so would focus investments on a specific sector of the market. Managers of these funds usually have both long and short equity positions.

**
The Quants
** by
Scott Patterson

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Albert Einstein, asset allocation, automated trading system, beat the dealer, Benoit Mandelbrot, Bernie Madoff, Bernie Sanders, Black Swan, Black-Scholes formula, Bonfire of the Vanities, Brownian motion, buttonwood tree, buy low sell high, capital asset pricing model, centralized clearinghouse, Claude Shannon: information theory, cloud computing, collapse of Lehman Brothers, collateralized debt obligation, commoditize, computerized trading, Credit Default Swap, credit default swaps / collateralized debt obligations, diversification, Donald Trump, Doomsday Clock, Edward Thorp, Emanuel Derman, Eugene Fama: efficient market hypothesis, fixed income, Gordon Gekko, greed is good, Haight Ashbury, I will remember that I didn’t make the world, and it doesn’t satisfy my equations, index fund, invention of the telegraph, invisible hand, Isaac Newton, job automation, John Meriwether, John Nash: game theory, law of one price, Long Term Capital Management, Louis Bachelier, mandelbrot fractal, margin call, merger arbitrage, money market fund, Myron Scholes, NetJets, new economy, offshore financial centre, old-boy network, Paul Lévy, Paul Samuelson, Ponzi scheme, quantitative hedge fund, quantitative trading / quantitative ﬁnance, race to the bottom, random walk, Renaissance Technologies, risk-adjusted returns, Rod Stewart played at Stephen Schwarzman birthday party, Ronald Reagan, Sergey Aleynikov, short selling, South Sea Bubble, speech recognition, statistical arbitrage, The Chicago School, The Great Moderation, The Predators' Ball, too big to fail, transaction costs, value at risk, volatility smile, yield curve, éminence grise

By then, Thorp and Regan were managing about $130 million, a heady increase from the $10,000 stake Thorp had received from Manny Kimmel for his first blackjack escapade in 1961. (In 1969, when the fund opened its doors for business, it had a stake of $1.4 million.) But Thorp wasn’t resting on his laurels. He was always on the lookout for new talent. In 1985, he ran across a hotshot trader named Gerry Bamberger who’d just abandoned a post at Morgan Stanley. Bamberger had created a brilliant stock trading strategy that came to be known as statistical arbitrage, or stat arb—one of the most powerful trading strategies ever devised, a nearly flawless moneymaking system that could post profits no matter what direction the market was moving. It was right up Thorp’s alley. Gerry Bamberger discovered stat arb almost by accident. A tall, quick-witted Orthodox Jew from Long Island, he’d joined Morgan Stanley in 1980 after earning a degree in computer science at Columbia University.

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The weekend after the presentation, Shaw decided to quit, informing Tartaglia of his decision the following Monday. Tartaglia, possibly perceiving Shaw as a threat, was happy to see him go. It may have been one of the most significant losses of talent in the history of Morgan Stanley. Shaw landed on his feet, starting up his own investment firm with $28 million in capital and naming his fund D. E. Shaw. It soon became one of the most successful hedge funds in the world. Its core strategy: statistical arbitrage. Tartaglia, meanwhile, hit a rough patch, and in 1988, Morgan’s higher-ups slashed APT’s capital to $300 million from $900 million. Tartaglia amped up the leverage, eventually pushing the leverage-to-capital ratio to 8 to 1 (it invested $8 for each $1 it actually had in its coffers). By 1989, APT had started to lose money. The worse things got, the more frantic Tartaglia became. Eventually he was forced out.

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By then, Citadel had more than $1 billion under management. The fund was diving into nearly every trading strategy known to man. In the early 1990s, it had thrived on convertible bonds and a boom in Japanese warrants. In 1994, it launched a “merger arbitrage” group that made bets on the shares of companies in merger deals. The same year, encouraged by Ed Thorp’s success at Ridgeline Partners, the statistical arbitrage fund he’d started up after shutting down Princeton/Newport, it launched its own stat arb fund. Citadel started dabbling in mortgage-backed securities in 1999, and plunged into the reinsurance business a few years later. Griffin created an internal market–making operation for stocks that would let it enter trades that flew below Wall Street’s radar, always a bonus to the secrecy-obsessed fund manager.

**
More Money Than God: Hedge Funds and the Making of a New Elite
** by
Sebastian Mallaby

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Andrei Shleifer, Asian financial crisis, asset-backed security, automated trading system, bank run, barriers to entry, Benoit Mandelbrot, Berlin Wall, Bernie Madoff, Big bang: deregulation of the City of London, Bonfire of the Vanities, Bretton Woods, capital controls, Carmen Reinhart, collapse of Lehman Brothers, collateralized debt obligation, computerized trading, corporate raider, Credit Default Swap, credit default swaps / collateralized debt obligations, crony capitalism, currency manipulation / currency intervention, currency peg, Elliott wave, Eugene Fama: efficient market hypothesis, failed state, Fall of the Berlin Wall, financial deregulation, financial innovation, financial intermediation, fixed income, full employment, German hyperinflation, High speed trading, index fund, John Meriwether, Kenneth Rogoff, Long Term Capital Management, margin call, market bubble, market clearing, market fundamentalism, merger arbitrage, money market fund, moral hazard, Myron Scholes, natural language processing, Network effects, new economy, Nikolai Kondratiev, pattern recognition, Paul Samuelson, pre–internet, quantitative hedge fund, quantitative trading / quantitative ﬁnance, random walk, Renaissance Technologies, Richard Thaler, risk-adjusted returns, risk/return, rolodex, Sharpe ratio, short selling, Silicon Valley, South Sea Bubble, sovereign wealth fund, statistical arbitrage, statistical model, survivorship bias, technology bubble, The Great Moderation, The Myth of the Rational Market, the new new thing, too big to fail, transaction costs

Presented with apparently random data and no further clues, they sift it repeatedly for patterns, exploiting the power of computers to hunt for ghosts that to the human eye would be invisible. Renaissance’s quantitative rivals have reason to avoid ghost hunting. The computer may find fake ghosts—patterns that exist for no reason beyond chance, and that consequently have no predictive value. Eric Wepsic, who runs statistical arbitrage at D. E. Shaw, gives the example of the Super Bowl: It used to be said that if a team from the original National Football League won, the market would head upward. As a matter of statistics, this relationship might hold; but as a matter of common sense, it is a meaningless coincidence. Because of the threat from coincidental correlations masquerading as predictive signals, Wepsic suggests that it is often dangerous to trade on statistical evidence unless it can be intuitively explained.

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But once the firm realized that the correlations made intuitive sense—they reflected the technology euphoria that had pushed into all these industries—they seemed more likely to be tradable.27 Moreover, signals based on intuition have a further advantage: If you understand why they work, you probably understand why they might cease to work, so you are less likely to keep trading them beyond their point of usefulness. In short, Wepsic is saying that pure pattern recognition is a small part of what Shaw does, even if the firm does some of it. Again, this presents a contrast with Renaissance. Whereas D. E. Shaw grew out of statistical arbitrage in equities, with strong roots in fundamental intuitions about stocks, Renaissance grew out of technical trading in commodities, a tradition that treats price data as paramount.28 Whereas D. E. Shaw hired quants of all varieties, usually recruiting them in their twenties, the crucial early years at Renaissance were largely shaped by established cryptographers and translation programmers—experts who specialized in distinguishing fake ghosts from real ones.

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But by 2005 nobody could argue that hedge funds were exceptional in any way: More than eight thousand had sprouted, and the long track records of the established funds made it hard to dismiss their enviable returns as the products of good fortune. Bit by bit, the old talk of luck and genius faded and the new lingo took its place—at hedge-fund conferences from Phoenix to Monaco, a host of consultants and gurus held forth about the scientific product they called alpha. The great thing about alpha was that it could be explained: Strategies such as Tom Steyer’s merger arbitrage or D. E. Shaw’s statistical arbitrage delivered uncorrelated, market-beating profits in a way that could be understood, replicated, and manufactured by professionals. And so the era of the manufacturer arrived. Innovation and inspiration gave way to a new sort of alpha factory. You could see this transformation all over the hedge-fund industry. By the early 2000s, there was no longer much doubt that long/short equity stock picking, as practiced by Julian Robertson’s Tiger, could deliver market-beating returns.

**
Stock Market Wizards: Interviews With America's Top Stock Traders
** by
Jack D. Schwager

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Asian financial crisis, banking crisis, barriers to entry, beat the dealer, Black-Scholes formula, commodity trading advisor, computer vision, East Village, Edward Thorp, financial independence, fixed income, implied volatility, index fund, Jeff Bezos, John Meriwether, John von Neumann, locking in a profit, Long Term Capital Management, margin call, money market fund, Myron Scholes, paper trading, passive investing, pattern recognition, random walk, risk tolerance, risk-adjusted returns, short selling, Silicon Valley, statistical arbitrage, the scientific method, transaction costs, Y2K

An example of classic arbitrage would be buying gold in New York at $290 an ounce and simultaneously selling the same quantity in London at $291. In our age of computerization and near instantaneous communication, classic arbitrage opportunities are virtually nonexistent. Statistical arbitrage expands the classic arbitrage concept of simultaneously buying and selling identical financial instruments for a locked-in profit to encompass buying and selling closely related financial instruments for a probable profit. In statistical arbitrage, each individual trade is no longer a sure thing, but the odds imply an edge. The trader engaged in statistical arbitrage will lose on a significant percentage of trades but will be profitable over the long run, assuming trade probabilities and transaction costs have been accurately estimated. An appropriate analogy would be roulette (viewed from the casino's perspective): The casino's DAVID SHAW: odds of winning on any particular spin of the wheel are only modestly better than fifty-fifty, but its edge and the laws of probability will assure that it wins over the long run.

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An appropriate analogy would be roulette (viewed from the casino's perspective): The casino's DAVID SHAW: odds of winning on any particular spin of the wheel are only modestly better than fifty-fifty, but its edge and the laws of probability will assure that it wins over the long run. There are many different types of statistical arbitrage. We will focus on one example: pairs trading. In addition to providing an easy-to grasp illustration, pairs trading has the advantage of reportedly being one of the prime strategies used by the Morgan Stanley trading group, for which Shaw worked before he left to form his own firm. Pairs trading involves a two-step process. First, past data are used to define pairs of stocks that tend to move together. Second, each of these pairs is monitored for performance divergences. Whenever there is a statistically meaningful performance divergence between two stocks in a defined pair, the stronger of the pair is sold and the weaker is bought.

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Pairs Trading: Performance of a Relative Value Arbitrage Rule. National Bureau of Economic Research Working Paper No. 7032; March 1999. f HE Q U A N T I T A T I V E E D G E structure of identifying securities that are underpriced relative to other securities. However, that is where the similarity ends. A partial list of the elements of complexity that differentiate Shaw's trading methodology from a simple statistical arbitrage strategy, such as pairs trading, include some, and possibly all, of the following: Trading signals are based on over twenty different predictive techniques, rather than a single method. Each of these methodologies is probably far more sophisticated than pairs trading. Even if performance divergence between correlated securities is the core of one of these strategies, as it is for pairs trading, the mathematical structure would more likely be one that simultaneously analyzes the interrelationship of large numbers of securities, rather than one that analyzes two stocks at a time.

**
Understanding Asset Allocation: An Intuitive Approach to Maximizing Your Portfolio
** by
Victor A. Canto

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accounting loophole / creative accounting, airline deregulation, Andrei Shleifer, asset allocation, Bretton Woods, buy low sell high, capital asset pricing model, commodity trading advisor, corporate governance, discounted cash flows, diversification, diversified portfolio, fixed income, frictionless, high net worth, index fund, inflation targeting, invisible hand, John Meriwether, law of one price, liquidity trap, London Interbank Offered Rate, Long Term Capital Management, market bubble, merger arbitrage, money market fund, new economy, passive investing, Paul Samuelson, price mechanism, purchasing power parity, risk tolerance, risk-adjusted returns, risk/return, Ronald Reagan, selection bias, shareholder value, Sharpe ratio, short selling, statistical arbitrage, survivorship bias, the market place, transaction costs, Y2K, yield curve, zero-sum game

In fact, one can make the case that for the few strategies with higher monthly returns than the S&P 500, the differences do not appear to be statistically significant. Table 12.2 Average monthly returns and standard deviation for selected hedge-fund strategies: January 1990 to December 2004. Monthly Returns Standard Deviation Sharpe Ratio 0.69% 1.25% 0.95 HFRI Equity Market Neutral Index: 0.71% Statistical Arbitrage 1.14% 1.14 HFRI Equity Market Neutral Index 0.75% 0.92% 1.61 HFRI Fixed Income: High Yield Index 0.80% 1.84% 0.85 HFRI Fixed Income (Total) 0.86% 1.00% 1.79 HFRI Convertible Arbitrage Index 0.86% 0.98% 1.86 S&P 500 0.96% 4.23% 0.51 S&P 500 Equal Weighted 1.11% 4.53% 0.58 HFRI Event-Driven Index 1.19% 1.91% 1.53 HFRI Distressed Securities Index 1.23% 1.77% 1.71 HFRI Emerging Markets (Total) 1.29% 4.31% 0.76 HFRI Macro Index 1.29% 2.44% 1.35 HFRI Fixed Income : Arbitrage Index continues Chapter 12 Keeping the Wheels on the Hedge-Fund ATV 229 Table 12.2 continued Monthly Returns Standard Deviation Sharpe Ratio HFRI Equity Hedge Index 1.39% 2.58% 1.42 HFRI Market Timing Index 1.03% 1.95% 1.23 HFRI Composite Index 1.15% 2.00% 1.40 Source: Hedge Fund Research, Inc.

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Looking at the ratio of the hedge-fund strategies’ cumulative returns to the S&P 500, it is apparent there are runs in the data. As a cycle-minded investor can guess, some simple tests reject the hypothesis that the runs in the data are randomly generated. 230 UNDERSTANDING ASSET ALLOCATION Five of the six hedge-fund strategies reported in Figures 12.1a through 12.1f— market neutral (see Figure 12.1a), fixed-income arbitrage (see Figure 12.1b), fixed-income high-yield (see Figure 12.1c), equity market neutral statistical arbitrage (see Figure 12.1e), and fixed-income (total) (see Figure 12.f)— underperformed the S&P 500 during the 1990–2004 period. The sixth strategy, convertible arbitrage (see Figure 12.1d), barely outperformed the S&P 500. The data also show most of the strategies were keeping up with the S&P 500 prior to 1994, as evidenced by the flat or rising relative performance line in Figures 12.1a, b, d, and e.

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Chapter 12 Keeping the Wheels on the Hedge-Fund ATV 231 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 1990 1992 1994 1996 1998 2000 2002 2004 Figure 12.1c Ratio of the fixed-income, high-yield hedge-fund index to the S&P 500. 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 1990 1992 1994 1996 1998 2000 2002 2004 Figure 12.1d Ratio of the convertible arbitrage hedge-fund index to the S&P 500. 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 1990 1992 Figure 12.1e 232 1994 1996 1998 2000 2002 2004 Ratio of the equity market neutral statistical arbitrage hedge-fund index to the S&P 500. UNDERSTANDING ASSET ALLOCATION 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 1990 1992 1994 1996 1998 2000 2002 2004 Figure 12.1f Ratio of the fixed-income (total) hedge-fund index to the S&P 500. There’s a clear pattern of relative underperformance and outperformance for the hedge-fund strategies. Another six strategies—macro (see Figure 12.2a), distressed securities (see Figure 12.2b), event driven (see Figure 12.2c), emerging markets (see Figure 12.2d), market timing (see Figure 12.2e), and hedgefund composite (see Figure 12.2f)—outperformed the S&P 500 during the 1990–1994 and 1999–2004 time periods. 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 1990 1992 Figure 12.2a 1994 1996 1998 2000 2002 2004 Ratio of the global macro hedge-fund index to the S&P 500.

**
Endless Money: The Moral Hazards of Socialism
** by
William Baker,
Addison Wiggin

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Andy Kessler, asset allocation, backtesting, bank run, banking crisis, Berlin Wall, Bernie Madoff, Black Swan, Branko Milanovic, break the buck, Bretton Woods, BRICs, business climate, capital asset pricing model, commoditize, corporate governance, correlation does not imply causation, credit crunch, Credit Default Swap, crony capitalism, cuban missile crisis, currency manipulation / currency intervention, debt deflation, Elliott wave, en.wikipedia.org, Fall of the Berlin Wall, feminist movement, fiat currency, fixed income, floating exchange rates, Fractional reserve banking, full employment, German hyperinflation, housing crisis, income inequality, index fund, inflation targeting, Joseph Schumpeter, laissez-faire capitalism, land reform, liquidity trap, Long Term Capital Management, McMansion, mega-rich, money market fund, moral hazard, mortgage tax deduction, naked short selling, negative equity, offshore financial centre, Ponzi scheme, price stability, pushing on a string, quantitative easing, RAND corporation, rent control, reserve currency, riskless arbitrage, Ronald Reagan, school vouchers, seigniorage, short selling, Silicon Valley, six sigma, statistical arbitrage, statistical model, Steve Jobs, The Great Moderation, the scientific method, time value of money, too big to fail, upwardly mobile, War on Poverty, Yogi Berra, young professional

A town that has 100 traffic cops and no murder detectives probably won’t find any dead bodies, but its police force will be very busy and profitable. Evidence-Based Investing How else could one get the courage to lever up to five-to-one or even 30-to-1 as was the case in some investment banks and statistical arbitrage proprietary trading funds, without “proof ” that certain assets and liabilities would behave in correlation or within bands of normal distribution? One year before the equity market imploded due to the credit crisis, a class of hedge funds known as “statistical arbitrage” funds collapsed, foretelling the effect leverage was having on stability of the market. The premise of this fund category was that excess returns could be harvested from bets on mean reversion, such as spreads between certain categories of debt, or among equity sectors such banks that lend against real estate and REITs, which own property.

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But due to the mathematics, its sensitivity to the change in covariance of its positions is magnified fourfold. Probably half of all statistical arbitrage funds that deployed this strategy have moved on to greener pastures. But the use of value-at-risk statistical models to control exposure in hedge funds or even for large pension funds that allocate between different asset types continues, and it is virtually a mandatory exercise for institutional managers. There is hardly a large pension plan that has not developed a PowerPoint presentation that boasts it realigned its investments to increase excess return (alpha) and also reduced risk (variance). So in this sense, statistical arbitrage exists in some diluted form almost everywhere. Nassim Taleb decries the practice of evidence-based investing and value at risk models as conducted in the mainstream of Wall Street in his tome The Black Swan.

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., 294–295 Smith, Adam, 264–265 Smyth, Douglas, 252 “Social credit,” 113 Social Investment Fund Network, 181–182 Socialism, and “I.O.U.S.A.,” 335–338. See also Capitalism; Fiat currency; Moral hazard Soros, George, 180–181, 184–185 Sowell, Thomas, 216 Specie, 36. See also Gold; Hard money INDEX Specie Circular, 49 Spitzer, Elliot, 322, 328 “Stamped money,” 113 Stanford, Allen, 330 Stanford Capital, 26 State Children’s Health Insurance Program (SCHIP), 202 Statistical arbitrage funds, 27–28 Stocks for the Long Run (Siegel), 31 Stolo, Licinius, 246 Strong, Benjamin, 64 Study of Administration (Wilson), 288 “Subprime Fiasco Exposes Manipulation by Mortgage Brokers” (Lubove, Taub), 148 Swaps, 125 Swope, Gerard, 317 Tabulae novae, 247 Taleb, Nassim Nicholas, 15, 16, 28, 280 Tallmadge, Benjamin, 3 Taub, Daniel, 148–149 Taxation: and federal budget deficit, 189–197 flat (or fair) tax, 202–204 history of, 197–202 overview, 188–189 Taylor Rule, 75–76 Taylor, John B., 75–76 Temin, Peter, 107–108, 114 Term Securities Lending Facility, 124–125 Theory of Moral Sentiments (Smith), 264 Tiberius, 249, 258 Tides Foundation, 180, 181 Torricelli Principle, 362 Trienans, Howard, 168 Troubled Asset Relief Program (TARP), 122, 128, 130, 139, 141, 143, 152, 214, 220, 235 Truman, Harry, 289 Index Turk, James, 350 Turner, Ted, 175 Turning Point Inc., 320 UBS, 22, 173 U.S.

**
The Crisis of Crowding: Quant Copycats, Ugly Models, and the New Crash Normal
** by
Ludwig B. Chincarini

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affirmative action, asset-backed security, automated trading system, bank run, banking crisis, Basel III, Bernie Madoff, Black-Scholes formula, buttonwood tree, Carmen Reinhart, central bank independence, collapse of Lehman Brothers, collateralized debt obligation, collective bargaining, corporate governance, correlation coefficient, Credit Default Swap, credit default swaps / collateralized debt obligations, delta neutral, discounted cash flows, diversification, diversified portfolio, family office, financial innovation, financial intermediation, fixed income, Flash crash, full employment, Gini coefficient, high net worth, hindsight bias, housing crisis, implied volatility, income inequality, interest rate derivative, interest rate swap, John Meriwether, labour mobility, liquidity trap, London Interbank Offered Rate, Long Term Capital Management, low skilled workers, margin call, market design, market fundamentalism, merger arbitrage, Mexican peso crisis / tequila crisis, money market fund, moral hazard, mortgage debt, Myron Scholes, negative equity, Northern Rock, Occupy movement, oil shock, price stability, quantitative easing, quantitative hedge fund, quantitative trading / quantitative ﬁnance, Ralph Waldo Emerson, regulatory arbitrage, Renaissance Technologies, risk tolerance, risk-adjusted returns, Robert Shiller, Robert Shiller, Ronald Reagan, Sharpe ratio, short selling, sovereign wealth fund, speech recognition, statistical arbitrage, statistical model, survivorship bias, systematic trading, The Great Moderation, too big to fail, transaction costs, value at risk, yield curve, zero-coupon bond

If an investment’s expected return is higher than the borrowing rate, a trader can amplify the return as a percentage of capital by borrowing at the lower rate and investing at the higher rate. Just as leverage amplifies gains, it also amplifies losses. LTCM had identified very high Sharpe ratio trades with very low volatility. To give investors meaningful returns, the fund leveraged its portfolio. Although most of LTCM’s trades were not pure arbitrages, but rather statistical arbitrages or quasi-arbitrages, it is helpful to illustrate this concept with a pure arbitrage. Suppose LTCM had identified a bond that would pay $100 in one year with certainty. It bought the bond at $90, giving an unlevered return of 10%. The risk for the one-year holding period was zero. With no leverage, LTCM could just wait, even if the bond’s price fell as low as $0.01 in the interim. With leverage, this becomes difficult or impossible.

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HighBridge Statistical Opportunities Fund was down 18% for the month; Tykhe Capital LLC, a New York-based quantitative fund, was down 20% for the month; AQR’s flagship fund was down 13% by August 10; by August 14, 2007, Goldman Sachs Global Equity Opportunities Fund had lost more than 30% in one week.10 What Was the Quant Crisis? A quant crisis is one that affects quantitative money managers, vaguely defined as any portfolio managers that use a quantitative system to manage trades, rather than a human-based security-picking system. The quant world includes various types of managers, including those in charge of statistical arbitrage hedge funds, many managed futures funds, and a large class of long-short or market-neutral equity funds. This quant crisis mainly affected funds using quantitative equity strategies. In 2007, the leading quant portfolio companies were Barclays Global Investors (BGI), Goldman Sachs Asset Management (GSAM), State Street, Morgan Stanley’s Process Driven Trading (PDT) group, AQR, First Quadrant, Analytic Investors, AXA Rosenberg, Panagora, Mellon Capital, Acadian, Analytic, and Numeric.

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In 2007, the leading quant portfolio companies were Barclays Global Investors (BGI), Goldman Sachs Asset Management (GSAM), State Street, Morgan Stanley’s Process Driven Trading (PDT) group, AQR, First Quadrant, Analytic Investors, AXA Rosenberg, Panagora, Mellon Capital, Acadian, Analytic, and Numeric. The largest of these were BGI, GSAM, and State Street. The leaders and traders in many of these quant funds earned PhDs from leading schools in finance, economics, and mathematics. In this crisis, the large negative returns seemed to disproportionately affect quantitative hedge funds, in particular quantitative equity hedge funds and statistical arbitrage funds.11 The value of common equity factors used to construct quantitative equity portfolios decreased in concert during this period, while their (typically low) correlations increased. Liquidity—especially in typical quant factors—completely dried up, especially during the week of August 6 to 13, 2007. Quantitative funds have a number of common attributes.12 Quantitative equity funds are usually market-neutral or enhanced index hedge funds or mutual funds that use computers to sort stocks by desirable and less desirable factors.

**
My Life as a Quant: Reflections on Physics and Finance
** by
Emanuel Derman

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Berlin Wall, bioinformatics, Black-Scholes formula, Brownian motion, capital asset pricing model, Claude Shannon: information theory, Donald Knuth, Emanuel Derman, fixed income, Gödel, Escher, Bach, haute couture, hiring and firing, implied volatility, interest rate derivative, Jeff Bezos, John Meriwether, John von Neumann, law of one price, linked data, Long Term Capital Management, moral hazard, Murray Gell-Mann, Myron Scholes, Paul Samuelson, pre–internet, publish or perish, quantitative trading / quantitative ﬁnance, Richard Feynman, Sharpe ratio, statistical arbitrage, statistical model, Stephen Hawking, Steve Jobs, stochastic volatility, technology bubble, the new new thing, transaction costs, value at risk, volatility smile, Y2K, yield curve, zero-coupon bond, zero-sum game

Fixed-income trading requires a better grasp of technology and quantitative methods than equities trading. A trader friend of mine summed it up succinctly when, after I commented to him that the fixed-income traders I knew seemed smarter than the equity traders, he replied that "that's because there's no competitive edge to being smart in the equities business" I don't mean to suggest that all quants work on the Black-Scholes model. Increasingly, some of them work on statistical arbitrage, the attempt to seek order and predictability in the patterns of past stock price movements and then exploit them-that is, to divine the future from the past. Hedge funds, private pools of capital that seek out subtle price discrepancies in odd and unexplored corners of markets, have become major employers of quants during the past five years, and continue to hire them to do "stat-arb" Risk management is also in mode, and for good reason.

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Nevertheless, in the twenty-first century, as universities have initiated financial engineering programs and financial institutions have embraced risk management, being a quant has slowly become a more legitimate profession. The overheated tech-stock market of the late 1990s cast a warm, reflected glow on geeks of all types, as did the droves of hedge funds trying to use mathematical models to squeeze dollars out of subtleties. The guts to lose a lot of money carries its own aura. D.E. Shaw & Co., a NewYork trading house that was rumored to be making substantial profits doing "black box" computerized statistical arbitrage before their billion-dollar losses in 1998, and Long Term Capital Management, the quant-driven Connecticut hedge fund that ultimately needed a multibillion-dollar bailout, have both contributed to this more glamorous view of quantization. And indeed, many of the Long Term Capital protagonists are back in business again at new firms. The capacity to wreak destruction with your models provides the ultimate respectability.

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'Pairs trading is the search for statistically significant oscillatory patterns in the spread between pairs of similar stocks. If you believe you have detected such a phenomenon, you short the expensive stock and buy the cheap one when the spread is large, and then reverse the trade when/if the spread narrows. Since Tartaglia's renowned but temporary successes at Morgan Stanley, trading houses, hedge funds, and the scientists they employ have regularly and hopefully attempted to build model-driven, so-called "statistical arbitrage" money machines of this type. 'At this time I also began attending various computer science research seminars and conferences, where I was always struck by the difference in quality between computer science research and physics research. In physics, seminar speakers described completed achievements. In computer science, however, the majority of the talks were about plans for systems, sketches of new languages, and unimplemented ideas.The hurdle for declaring accomplishment seemed much lower.

**
The Physics of Wall Street: A Brief History of Predicting the Unpredictable
** by
James Owen Weatherall

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Albert Einstein, algorithmic trading, Antoine Gombaud: Chevalier de Méré, Asian financial crisis, bank run, beat the dealer, Benoit Mandelbrot, Black Swan, Black-Scholes formula, Bonfire of the Vanities, Bretton Woods, Brownian motion, butterfly effect, capital asset pricing model, Carmen Reinhart, Claude Shannon: information theory, collateralized debt obligation, collective bargaining, dark matter, Edward Lorenz: Chaos theory, Edward Thorp, Emanuel Derman, Eugene Fama: efficient market hypothesis, financial innovation, fixed income, George Akerlof, Gerolamo Cardano, Henri Poincaré, invisible hand, Isaac Newton, iterative process, John Nash: game theory, Kenneth Rogoff, Long Term Capital Management, Louis Bachelier, mandelbrot fractal, martingale, Myron Scholes, new economy, Paul Lévy, Paul Samuelson, prediction markets, probability theory / Blaise Pascal / Pierre de Fermat, quantitative trading / quantitative ﬁnance, random walk, Renaissance Technologies, risk-adjusted returns, Robert Gordon, Robert Shiller, Robert Shiller, Ronald Coase, Sharpe ratio, short selling, Silicon Valley, South Sea Bubble, statistical arbitrage, statistical model, stochastic process, The Chicago School, The Myth of the Rational Market, tulip mania, V2 rocket, Vilfredo Pareto, volatility smile

.”: This section in particular is based on an interview with Farmer. The closest thing from Farmer’s and Packard’s days as physicists that was helpful in their early days with the Prediction Company was the work in Farmer and Sidorowich (1987), where they present a method for making short-term predictions based on a particular algorithmic approximation. “One strategy they used was something called statistical arbitrage . . .”: For more on the history of statistical arbitrage, see Bookstaber (2007). Ed Thorp also played a significant role in the early development of the idea; for more on his contribution, see Thorp (2004). “. . . a variety of computer programs known as genetic algorithms”: For more on genetic algorithms, see, for instance, Mitchell (1998). For Packard’s early contributions, see Packard (1988, 1990). “. . . over the firm’s first fifteen years . . .”: More specifically, this person told me that the company had a Sharpe ratio of 3. 7.

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What the Predictors were doing, rather, was trying to extract small amounts of information from a great deal of noise. It was a search for regularities of the same sort that lots of investors look for: how markets react to economic news like interest rates or employment numbers, how changes in one market manifest themselves in others, how the performances of different industries are intertwined. One strategy they used was something called statistical arbitrage, which works by betting that certain statistical properties of stocks will tend to return even if they disappear briefly. The classic example is pairs trading. Pairs trading works by observing that some companies’ stock prices are usually closely correlated. Consider Pepsi and Coca-Cola. Virtually any news that isn’t company-specific is likely to affect Pepsi’s products in just the same way as Coca-Cola’s, which means that the two stock prices usually track one another.

**
The Handbook of Personal Wealth Management
** by
Reuvid, Jonathan.

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asset allocation, banking crisis, BRICs, collapse of Lehman Brothers, correlation coefficient, credit crunch, cross-subsidies, diversification, diversified portfolio, estate planning, financial deregulation, fixed income, high net worth, income per capita, index fund, interest rate swap, laissez-faire capitalism, land tenure, market bubble, merger arbitrage, negative equity, new economy, Northern Rock, pattern recognition, Ponzi scheme, prediction markets, Right to Buy, risk tolerance, risk-adjusted returns, risk/return, short selling, side project, sovereign wealth fund, statistical arbitrage, systematic trading, transaction costs, yield curve

For more information about our Wealth Management Service contact 020 7189 9901, email Julian.Hall@bestinvest.co.uk julian.hall@bestinvest.co.uk bestinvest.co.uk ________________________________________________ HEDGE FUND STRATEGIES 27 ឣ Market neutral This is an extension to long/short equity where an attempt is made to eliminate market or idiosyncratic risk. Some funds negate exposure to market capitalization and sector exposures and may invest an equal number of stocks on both the long and short sides. Market neutral funds are further broken down into fundamental stock pickers, quantitative based (where the portfolios can be re-balanced by an optimizer ranging in frequency from once a week to quarterly) and statistical arbitrage where more frequent intra-day optimization is achieved. The goal is to derive returns (if all idiosyncratic risks are removed) through stock-picking and efficient execution. Global macro Macro funds may invest in any market, and frequently use leverage and derivatives, futures and swaps to make directional trades in equities, interest rates, currencies and commodities. Macro funds also tend to be very concentrated in their bets.

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The outlook for strategic M&A deals remains positive but the potential for leveraged buy-outs has reduced significantly. Fixed income arbitrage This strategy requires leverage, which is now scarce, in order to generate positive returns when credit spreads are narrowing. During 2008 credit spreads widened and leverage was removed. There were large redemptions from this strategy throughout the year and many hedge funds operating this strategy have been forced to close. Statistical arbitrage This market-neutral strategy profits from high-frequency trading with stock holding periods ranging from seconds to months. The volatile trading environment of 2008 has meant that some of the shorter-term positions were able to produce positive ឣ 34 PORTFOLIO INVESTMENT _________________________________________________ returns. Many funds’ computer models were re-calibrated following the restrictions on shorting financials. 2009 outlook Those hedge funds that have preserved capital through 2008 will have the financial fire power to take advantage of the opportunities now arising.

**
Crapshoot Investing: How Tech-Savvy Traders and Clueless Regulators Turned the Stock Market Into a Casino
** by
Jim McTague

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algorithmic trading, automated trading system, Bernie Madoff, Bernie Sanders, Bretton Woods, buttonwood tree, computerized trading, corporate raider, creative destruction, credit crunch, Credit Default Swap, financial innovation, fixed income, Flash crash, High speed trading, housing crisis, index arbitrage, locking in a profit, Long Term Capital Management, margin call, market bubble, market fragmentation, market fundamentalism, Myron Scholes, naked short selling, pattern recognition, Ponzi scheme, quantitative trading / quantitative ﬁnance, Renaissance Technologies, Ronald Reagan, Sergey Aleynikov, short selling, Small Order Execution System, statistical arbitrage, technology bubble, transaction costs, Vanguard fund, Y2K

Narang was dark, slim, and handsome and spoke in a rich baritone. His hair and goatee were jet black, with traces of silver. He was friendly, patient, and forceful, and he had a gift for lecture. He had hung a white board in his office to illustrate his arguments. After graduating from MIT in 1991 with a degree in mathematics and computer science, Narang began working on the proprietary trading desk at First Boston, engaging in statistical arbitrage. He expected the job to be temporary. His plan was to return to academia in a year or so to obtain a Ph.D. in mathematics, but he was bitten by the Wall Street bug. Narang discovered that he enjoyed trading, so he traded virtually everything, from Treasury bonds to equities. Over the next eight years, he worked for a number of Wall Street’s largest firms, including Goldman Sachs. While at Goldman Sachs, he decided to launch his own business.

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If on a given day a stock rose in value by X dollars, for instance, the traders might judge the move to be extreme, based on 20 years’ worth of pricing, volume, and related data, and short the stock, expecting it to correct back down. If the underlying company was a big food producer, the stock’s fall might affect the prices of agricultural futures on the commodities exchange. The super-fast computers would exploit such correlations. Statistical arbitrage was a variation on the age-old theme of buy low and sell high, but with some twists. For instance, a trader did not always buy and sell exactly the same stock. The trader could buy a high-tech stock such as Microsoft when it was trending lower and immediately sell an index or exchange-traded fund (ETF) of high-tech stocks such as the QQQ, which has Microsoft as a component and would adjust downward to reflect Microsoft’s lower market value.

**
Electronic and Algorithmic Trading Technology: The Complete Guide
** by
Kendall Kim

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algorithmic trading, automated trading system, backtesting, commoditize, computerized trading, corporate governance, Credit Default Swap, diversification, en.wikipedia.org, family office, financial innovation, fixed income, index arbitrage, index fund, interest rate swap, linked data, market fragmentation, money market fund, natural language processing, quantitative trading / quantitative ﬁnance, random walk, risk tolerance, risk-adjusted returns, short selling, statistical arbitrage, Steven Levy, transaction costs, yield curve

A pure alpha-seeking strategy is very underdeveloped in algorithmic trading because it is very difficult to accomplish. In this regard, human traders making the final execution decisions still have a decided advantage over pure algorithmic or program trading. The FIX Protocol has allowed different proprietary systems to plug into a common standard and communicate with one another. Some trading programs are designed to decide which shares to buy and sell. These are used for statistical arbitrage, the practice of monitoring and comparing share prices to identify patterns that can be exploited to make a profit. Some exchanges now regulate the use of electronic and algorithmic trading, preventing their systems from being overloaded or to avoid repeating the crash of 1987. On July 7, 2005, the London Stock Exchange asked for algorithmic trading to be suspended after the London bombings.

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It has a flexible data model to handle multiple instrument data feeds in a consistent manner and rapidly support any new products that can be integrated into existing legacy systems and traditional relational databases using TimeScape XDK. This product can also be fully compatible with XML Web services based on SOAP and .NET. Xenomorph begins its second decade of growth. Xenomorph’s TimeScape is the current product enhanced and refined over the last 10 years. They currently have 30 clients globally, with investment banks accounting for 50% of their client base, and hedge funds specializing in convertible bond and statistical arbitrage along with asset management firms comprising the remainder. Apama Apama is an independent financial technology firm, founded in 2000, which provides outsourced trading strategies. Apama is designed to reduce the time taken to deploy and maintain an algorithmic trading solution. Apama currently has clients on both the buy and the sell side, with major clients including JP Morgan, ABN Amro, and Deutsche Bank.

**
Red-Blooded Risk: The Secret History of Wall Street
** by
Aaron Brown,
Eric Kim

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activist fund / activist shareholder / activist investor, Albert Einstein, algorithmic trading, Asian financial crisis, Atul Gawande, backtesting, Basel III, Bayesian statistics, beat the dealer, Benoit Mandelbrot, Bernie Madoff, Black Swan, capital asset pricing model, central bank independence, Checklist Manifesto, corporate governance, creative destruction, credit crunch, Credit Default Swap, disintermediation, distributed generation, diversification, diversified portfolio, Edward Thorp, Emanuel Derman, Eugene Fama: efficient market hypothesis, experimental subject, financial innovation, illegal immigration, implied volatility, index fund, Long Term Capital Management, loss aversion, margin call, market clearing, market fundamentalism, market microstructure, money market fund, money: store of value / unit of account / medium of exchange, moral hazard, Myron Scholes, natural language processing, open economy, Pierre-Simon Laplace, pre–internet, quantitative trading / quantitative ﬁnance, random walk, Richard Thaler, risk tolerance, risk-adjusted returns, risk/return, road to serfdom, Robert Shiller, Robert Shiller, shareholder value, Sharpe ratio, special drawing rights, statistical arbitrage, stochastic volatility, The Myth of the Rational Market, Thomas Bayes, too big to fail, transaction costs, value at risk, yield curve

But if interest rates went up, few people would refinance, and the security holders would get back less than the expected cash flows, at a time when they wanted to take advantage of the higher rates. Prepayment risk was much too small to justify the yield difference. It was possible to trade GNMAs actively, along with bond futures and options, to lock in highly predictable profits. At the time we called this a statistical arbitrage. An arbitrage is a trade with no risk and positive profit. A statistical arbitrage is a trade with controllable risk that is much smaller than the expected positive profit. A good example is a roulette wheel from the standpoint of a casino. Today, however, the term stat arb has been taken over by a group of strategies descended from pairs trading. One of the things I was doing at the time was running such an active GNMA portfolio.

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See Securities and Exchange Commission (SEC) Secret history of Wall Street: 1654–1982 period 1983–1987 period 1988–1992 period 1993–2007 period Securities and Exchange Commission (SEC) Securitization Seven principles of risk management: I: risk duality II: valuable boundary III: risk ignition IV: money V: evolution VI: superposition VII: game theory Sharpe ratio Shiller, Robert Smile and skew option Soros, George Sports betting/bettors Spread trade Squam Lake Report, The (French, et. al.) Statistical arbitrage Statistical Decision Functions (Wald) Statistical games Statistical reasoning, basic principles Statistics, history of Stigler, Steven Still Life with a Bridle (Herbert) Stock market crash: Monday, October 19, 1987 Stoller, Martin Stoller, Phil Stone Age Economics (Sahlins) Story of money: 1776, continental dollars Andrew Dexter generally government and paper paleonomics paper vs. metal property, exchange and risk transition what money does Strange Days Indeed (Wheen) Stress tests Sull, Donald Superposition Tail risk—extreme events Tale of High-Flying Speculation and America’s First Banking Collapse, A (Kamensky) Taleb, Nassim Tett, Gillian Thaler, Richard 13 Bankers ( Johnson) Thirty Years War Theory of Blackjack, The (Griffin) Thorp, Edward To Engineer Is Human (Petroski) “Tolling” swap Trading from Your Gut (Faith) Trading risk Transaction taxes Treasury bills/bonds Trust in Numbers (Porter) Tukey, John Tulips/tulipomania Unspeakable truths: good stuff beyond VaR limit parametric risk managers create risk risk managers should make sure firms fail Upside of Turbulence, The (Sull) Useless Arithmetic (Pilkey) Utility theory: change of numeraire and decision maker identity and declining marginal utility and extensions utility maximization Valuable boundary Value at risk (VaR).

**
How I Became a Quant: Insights From 25 of Wall Street's Elite
** by
Richard R. Lindsey,
Barry Schachter

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Albert Einstein, algorithmic trading, Andrew Wiles, Antoine Gombaud: Chevalier de Méré, asset allocation, asset-backed security, backtesting, bank run, banking crisis, Black-Scholes formula, Bonfire of the Vanities, Bretton Woods, Brownian motion, business process, buy low sell high, capital asset pricing model, centre right, collateralized debt obligation, commoditize, computerized markets, corporate governance, correlation coefficient, creative destruction, Credit Default Swap, credit default swaps / collateralized debt obligations, currency manipulation / currency intervention, discounted cash flows, disintermediation, diversification, Donald Knuth, Edward Thorp, Emanuel Derman, en.wikipedia.org, Eugene Fama: efficient market hypothesis, financial innovation, fixed income, full employment, George Akerlof, Gordon Gekko, hiring and firing, implied volatility, index fund, interest rate derivative, interest rate swap, John von Neumann, linear programming, Loma Prieta earthquake, Long Term Capital Management, margin call, market friction, market microstructure, martingale, merger arbitrage, Myron Scholes, Nick Leeson, P = NP, pattern recognition, Paul Samuelson, pensions crisis, performance metric, prediction markets, profit maximization, purchasing power parity, quantitative trading / quantitative ﬁnance, QWERTY keyboard, RAND corporation, random walk, Ray Kurzweil, Richard Feynman, Richard Feynman, Richard Stallman, risk-adjusted returns, risk/return, shareholder value, Sharpe ratio, short selling, Silicon Valley, six sigma, sorting algorithm, statistical arbitrage, statistical model, stem cell, Steven Levy, stochastic process, systematic trading, technology bubble, The Great Moderation, the scientific method, too big to fail, trade route, transaction costs, transfer pricing, value at risk, volatility smile, Wiener process, yield curve, young professional

Second, it will bring an increasing number of extremely quantitative people into traditional areas of portfolio management. Their approach will most likely be more analytical and closer to “quantitative” than traditional managers, thus blurring the lines between quant and nonquant. Finally, I think that quantitative asset management’s range is going to increase dramatically over the next 10 years. Today when people think about quantitative asset management they usually think about statistical arbitrage or global tactical asset allocation. Over time, I see quantitative methods being applied to an increasing range of products. Driving this will be increased liquidity in new markets, the availability of data to analyze and the availability of electronic access to those markets. JWPR007-Lindsey May 7, 2007 16:55 136 JWPR007-Lindsey April 30, 2007 19:47 Chapter 8 Peter Carr Head of Quantitative Financial Research, Bloomberg I ’m thrilled to be asked to describe how I became a quant.

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Being blind to the heterogeneous process of option decay makes you believe option implied volatilities are more volatile than they really are. Active Portfolio Strategies Cooper Neff had two incarnations: first as an options market maker on exchanges around the world, next as a technology-driven, quantitative modeling firm trading equities at unheard-of high frequencies. The inflection point was in 1995, the year Cooper Neff was acquired by French bank BNP. Active Portfolio Strategies, or APS, was our version of equity statistical arbitrage, but no one ever used those terms at the firm. To us, equity stat arb meant pairs trading or exploiting the residuals of an equity factor model, and nothing we were doing had anything in common with these strategies. So we made up our own name. The genesis of APS came, oddly enough, while I was working at CoreStates in 1987. I came upon a barnburner of a book called The Microstructure of Securities Markets.7 This out-of-print work is a thin but dense and abstruse book that to me was a veritable gold mine.

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I’d like to thank Brad Asness, Kent Clark, David Kabiller, Robert Krail, and John Liew for helpful comments on this draft. 3. At AQR our IT department gets a kick out of this as I often yell for help because I’ve lost the ability to display “Helvetica font.” 4. One of these “other things” in my dissertation was a simulation study I never published that I still think is neat and an early study of what is now known as statistical arbitrage, where I concluded that it’s interesting, but doesn’t cover transactions costs, and then ignored several easy improvements, thereby not participating in one of the great hedge fund strategies of the late twentieth century. 5. It didn’t hurt that I’d be working with my best friend Jonathan Beinner (Jon is now a Goldman partner co-running the fixed income group). It also didn’t hurt that Fischer Black was then at GSAM.

**
Expected Returns: An Investor's Guide to Harvesting Market Rewards
** by
Antti Ilmanen

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Andrei Shleifer, asset allocation, asset-backed security, availability heuristic, backtesting, balance sheet recession, bank run, banking crisis, barriers to entry, Bernie Madoff, Black Swan, Bretton Woods, buy low sell high, capital asset pricing model, capital controls, Carmen Reinhart, central bank independence, collateralized debt obligation, commoditize, commodity trading advisor, corporate governance, credit crunch, Credit Default Swap, credit default swaps / collateralized debt obligations, debt deflation, deglobalization, delta neutral, demand response, discounted cash flows, disintermediation, diversification, diversified portfolio, dividend-yielding stocks, equity premium, Eugene Fama: efficient market hypothesis, fiat currency, financial deregulation, financial innovation, financial intermediation, fixed income, Flash crash, framing effect, frictionless, frictionless market, George Akerlof, global reserve currency, Google Earth, high net worth, hindsight bias, Hyman Minsky, implied volatility, income inequality, incomplete markets, index fund, inflation targeting, information asymmetry, interest rate swap, invisible hand, Kenneth Rogoff, laissez-faire capitalism, law of one price, Long Term Capital Management, loss aversion, margin call, market bubble, market clearing, market friction, market fundamentalism, market microstructure, mental accounting, merger arbitrage, mittelstand, moral hazard, Myron Scholes, negative equity, New Journalism, oil shock, p-value, passive investing, Paul Samuelson, performance metric, Ponzi scheme, prediction markets, price anchoring, price stability, principal–agent problem, private sector deleveraging, purchasing power parity, quantitative easing, quantitative trading / quantitative ﬁnance, random walk, reserve currency, Richard Thaler, risk tolerance, risk-adjusted returns, risk/return, riskless arbitrage, Robert Shiller, Robert Shiller, savings glut, selection bias, Sharpe ratio, short selling, sovereign wealth fund, statistical arbitrage, statistical model, stochastic volatility, survivorship bias, systematic trading, The Great Moderation, The Myth of the Rational Market, too big to fail, transaction costs, tulip mania, value at risk, volatility arbitrage, volatility smile, working-age population, Y2K, yield curve, zero-coupon bond, zero-sum game

The consistency of the results is impressive: all strategies have positive Sharpe ratios, ranging between 0.1 and 0.9. Value strategies worked especially well for stock selection in Japan and for equity country allocation. Other studies document the success of value strategies among emerging equity markets and among corporate bonds. Many fixed income arbitrage strategies employed in hedge funds and bank proprietary trading desks are based on mean-reverting spreads or related value anchors. Statistical arbitrage in equity markets—pairs trading and more complex variants—is also based on relative value (i.e., mean reversion in the pricing relationship between two assets). The profitability of such “arbitrage” (really: relative value trading) strategies waned significantly in the past decade as the technologies to exploit them became widely available. Low-hanging fruit were eliminated years ago. In country allocation, weighting countries by GDP rather than by market cap in a global index is one way to infuse a value bias.

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Another strand of literature analyzes gains of short-term liquidity providers over time. Instead of holding illiquid or high-liquidity-beta assets, these liquidity providers supply liquidity to the marketplace by trading a short-term reversal strategy. My intuition is that recent laggard stocks may have underperformed because of selling pressure, while recent winners may have benefited from buying pressure. Thus a classic “stat arb” (statistical arbitrage) strategy of buying recent laggards and selling recent outperformers attenuates the temporary supply–demand imbalance and should be rewarded. Technological progress has changed market structures and liquidity sources. For example, the New York Stock Exchange has lost market share in U.S. equity turnover to various electronic platforms and dark pools. Market-makers used to be the only explicit liquidity providers but they have increasingly been superseded by hedge funds and other stat arb traders.

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Treasuries were often the only asset class to benefit in flight-to-quality episodes, and this safe haven feature partly justifies Treasuries’ low required returns. Interestingly, Figure 19.6 suggests that this feature was not strong for Treasuries over the 20-year window (Treasuries became negatively correlated with VIX changes only around 1998), whereas both momentum and value strategies served such a safe haven role (although value worked as a safe haven mainly in the early 2000s, but not in the late 2000s). Statistical arbitrage strategies (pairs trading or exploiting short-term return reversals) may work even better in high-volatility regimes. Figure 19.6. Average monthly returns when the volatility factor is above or below its median, 1990–2009. Sources: Bloomberg, LPX, MSCI Barra, FTSE, Bank of America Merrill Lynch, Hedge Fund Research, Barclays Capital, S&P GSCI, Ken French’s website, Brevan Howard, own calculations.

**
The Misbehavior of Markets
** by
Benoit Mandelbrot

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Albert Einstein, asset allocation, Augustin-Louis Cauchy, Benoit Mandelbrot, Big bang: deregulation of the City of London, Black-Scholes formula, British Empire, Brownian motion, buy low sell high, capital asset pricing model, carbon-based life, discounted cash flows, diversification, double helix, Edward Lorenz: Chaos theory, Elliott wave, equity premium, Eugene Fama: efficient market hypothesis, Fellow of the Royal Society, full employment, Georg Cantor, Henri Poincaré, implied volatility, index fund, informal economy, invisible hand, John Meriwether, John von Neumann, Long Term Capital Management, Louis Bachelier, mandelbrot fractal, market bubble, market microstructure, Myron Scholes, new economy, paper trading, passive investing, Paul Lévy, Paul Samuelson, Plutocrats, plutocrats, price mechanism, quantitative trading / quantitative ﬁnance, Ralph Nelson Elliott, RAND corporation, random walk, risk tolerance, Robert Shiller, Robert Shiller, short selling, statistical arbitrage, statistical model, Steve Ballmer, stochastic volatility, transfer pricing, value at risk, Vilfredo Pareto, volatility smile

Jean-Philippe Bouchaud and some colleagues at Capital Fund Management were running two hedge funds with combined capital of $725 million as of the end of 2003. The funds engage in statistical arbitrage: They use mathematical models and computer horse-power to find what they think is incorrect pricing in the market, or other unstable patterns on which they can bet. The individual bets are small; but it is, for them, a game of large numbers. Many small profits can mount. In 2002, their biggest fund, Ventus, reported a stock-market gain of 28.1 percent, this, in a year when the market overall had fallen by a third. But it is also a game of chance: In 2003, they were less lucky with gains of just 3.32 percent. Their other fund, Discus, in the futures market, reported a 14.1 percent profit that year. “With statistical arbitrage, there are ups and downs,” Bouchaud says with a shrug. Their strategy is part multifractal, part many other things.

**
The Enigma of Capital: And the Crises of Capitalism
** by
David Harvey

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accounting loophole / creative accounting, anti-communist, Asian financial crisis, bank run, banking crisis, Bernie Madoff, Big bang: deregulation of the City of London, Bretton Woods, British Empire, business climate, call centre, capital controls, creative destruction, credit crunch, Credit Default Swap, David Ricardo: comparative advantage, deindustrialization, Deng Xiaoping, deskilling, equal pay for equal work, European colonialism, failed state, financial innovation, Frank Gehry, full employment, global reserve currency, Google Earth, Guggenheim Bilbao, Gunnar Myrdal, illegal immigration, indoor plumbing, interest rate swap, invention of the steam engine, Jane Jacobs, joint-stock company, Joseph Schumpeter, Just-in-time delivery, land reform, liquidity trap, Long Term Capital Management, market bubble, means of production, megacity, microcredit, moral hazard, mortgage debt, Myron Scholes, new economy, New Urbanism, Northern Rock, oil shale / tar sands, peak oil, Pearl River Delta, place-making, Ponzi scheme, precariat, reserve currency, Ronald Reagan, sharing economy, Silicon Valley, special drawing rights, special economic zone, statistical arbitrage, structural adjustment programs, the built environment, the market place, The Wealth of Nations by Adam Smith, Thomas L Friedman, Thomas Malthus, Thorstein Veblen, too big to fail, trickle-down economics, urban renewal, urban sprawl, white flight, women in the workforce

The ‘shadow banking system’ emerges 1980 Currency swaps 1981 Portfolio insurance introduced; interest rate swaps; futures markets in Eurodollars, in Certificates of Deposit and in Treasury instruments 1983 Options markets on currency, equity values and Treasury instruments; collateralised mortgage obligation introduced 1985 Deepening and widening of options and futures markets; computerised trading and modelling of markets begins in earnest; statistical arbitrage strategies introduced 1986 Big Bang unification of global stock, options and currency trading markets 1987–8 Collateralised Debt Obligations (CDOs) introduced along with Collateralised Bond Obligations (CBOs) and Collateralised Mortgage Obligations (CMOs) 1989 Futures on interest rate swaps 1990 Credit default swaps introduced along with equity index swaps 1991 ‘Off balance sheet’ vehicles known as special purpose entities or special investment vehicles sanctioned 1992–2009 Rapid evolution in volume of trading across all of these instruments.

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.: Limits to Growth 72 meat-based diets 73, 74 Medicare 28–9, 224 Mellon, Andrew 11, 98 mercantilism 206 merchant capitalists 40 mergers 49, 50 forced 261 Merrill Lynch 12 Merton, Robert 100 methane gas 73 Mexico debt crisis (1982) 10, 19 northern Miexico’s proximity to the US market 36 peso rescue 261 privatisation of telecommunications 29 and remittances 38 standard of living 10 Mexico City 243 microcredit schemes 145–6 microeconomics 237 microenterprises 145–6 microfinance schemes 145–6 Middle East, and oil issue 77, 170, 210 militarisation 170 ‘military-industrial complex’ 91 minorities: colonisation of urban neighbourhoods 247, 248 Mitterrand, François 198 modelling of markets 262 modernism 171 monarchy 249 monetarism 237 monetisation 244 money centralised money power 49–50, 52 a form of social power 43, 44 limitlessness of 43, 47 loss of confidence in the symbols/quality of money 114 universality of 106 monoculture 186 Monopolies Commission 52 monopolisation 43, 68, 95, 113, 116, 221 Monsanto 186 Montreal Protocol (1989) 76, 187 Morgan Stanley 19 Morishima, Michio 70 Morris, William 160 mortgages annual rate of change in US mortgage debt 7 mortgage finance for housing 170 mortgage-backed bonds futures 262 mortgage-backed securities 4, 262 secondary mortgage market 173, 174 securitisation of local 42 securitisation of mortgage debt 85 subprime 49, 174 Moses, Robert 169, 171, 177 MST (Brazil) 257 multiculturalism 131, 176, 231, 238, 258 Mumbai, India anti-Muslim riots (early 1990s) 247 redevelopment 178–9 municipal budgets 5 Museum of Modern Art, New York 21 Myrdal, Gunnar 196 N Nandigram, West Bengal 180 Napoleon III, Emperor 167, 168 national debt 48 National Economic Council (US) 11, 236 national-origin quotas 14 nationalisation 2, 4, 8, 224 nationalism 55–6, 143, 194, 204 NATO 203 natural gas 188 ‘natural limits’ 47 natural resources 30, 71 natural scarcity 72, 73, 78, 80, 83, 84, 121 nature and capital 88 ‘first nature’ 184 relation to 121, 122 ‘the revenge of nature’ 185 ‘second nature’ 184, 185, 187 as a social product 188 neocolonialism 208, 212 neoliberal counter-revolution 113 neoliberalism 10, 11, 19, 66, 131, 132, 141, 172, 175, 197, 208, 218, 224, 225, 233, 237, 243, 255 Nepal: communist rule in 226 Nevada, foreclosure wave in 1 New Deal 71 ‘new economy’ (1990s) 97 New Labour 45, 255 ‘new urbanism’ movement 175 New York City 11 September 2001 attacks 41 fiscal crisis (1975) 10, 172, 261 investment banks 19, 28 New York metropolitan region 169, 196 Nicaragua 189 Niger delta 251 non-governmental organisations (NGOs) 35, 253–4 non-interventionism 10 North Africa, French import of labour from 14 North America, settlement in 145 North American Free Trade Association (NAFTA) 200 Northern Ireland emergency 247 Northern Rock 2 Norway: Nordic cris (1992) 8 nuclear power 188 O Obama, Barack 11, 27, 34, 210 Obama administration 78, 121 O’Connor, Jim 77, 78 offshoring 131 Ogoni people 251 oil cheap 76–7 differential rent on oil wells 83 futures 83, 84 a non-renewable resource 82 ‘peak oil’ 38, 73, 78, 79, 80 prices 77–8, 80, 82–3, 261 and raw materials prices 6 rents 83 United States and 76–7, 79, 121, 170, 210, 261 OPEC (Organisation of Oil-Producing Countries) 83, 84 options markets currency 262 equity values 262 unregulated 99, 100 Orange County, California bankruptcy 100, 261 Organisation for Economic Cooperation and Development (OECD) 51 organisational change 98, 101 organisational forms 47, 101, 121, 127, 134, 238 Ottoman Empire 194 ‘over the counter’ trading 24, 25 overaccumulation crises 45 ozone hole 74 ozone layer 187 P Pakistan: US involvement 210 Palley, Thomas 236 Paris ‘the city of light’ 168 epicentre of 1968 confrontations 177, 243 Haussmann’s rebuilding of 49, 167–8, 169, 171, 176 municipal budget crashes (1868) 54 Paris Commune (1871) 168, 171, 176, 225, 243, 244 Partnoy, Frank: Ubfectious Greed 25 patents 221 patent laws 95 patriarchy 104 pensions pension funds 4, 5, 245 reneging on obligations 49 Péreire brothers 49, 54, 98, 174 pesticides 185, 186, 187 petty bourgeois 56 pharmaceutical sector 129, 245 philanthropy 44 Philippines: excessive urban development 8 Phillips, Kevin 206 Pinochet, General Augusto 15, 64 plant 58 Poland, lending to 19 political parties, radical 255–6 politics capitalist 76 class 62 co-revolutionary 241 commodified 219 depoliticised 219 energy 77 identity 131 labour organizing 255 left 255 transformative 207 pollution air 77 oceanic 74 rights 21 ‘Ponts et Chaussées’ organisation 92 Ponzi schemes 21, 114, 245, 246 pop music 245–6 Pope, Alexander 156 population growth 59, 72, 74, 121, 167 and capital accumulation 144–7 populism 55–6 portfolio insurance 262 poverty and capitalism 72 criminalisation and incarceration of the poor 15 feminisation of 15, 258 ‘Great Society’ anti-poverty programmes 32 Prague 243 prices commodity 37, 73 energy 78 food grain 79–80 land 8, 9, 182–3 oil 8, 28, 37–8, 77–8, 80, 82–3, 261 property 4, 182–3 raw material 37 reserve price 81–2 rising 73 share 7 primitive accumulation 58, 63–4, 108, 249 private consortia 50 private equity groups 50 private property and radical egalitarianism 233, 234 see also property markets; property rights; property values privatisation 10, 28, 29, 49, 251, 256, 257 pro-natal policies 59 production expansion of 112, 113 inadequate means of 47 investment in 114 liberating the concept 87 low-profit 29 offshore 16 production of urbanisation 87 reorganisation and relocation of 33 revolutionising of 89 surplus 45 technologies 101 productivity agreements 14, 60, 96 agricultural 119 cotton industry 67 gains 88, 89 Japan and West Germany 33 rising 96, 186 products development 95 innovation 95 new lines 94, 95 niches 94 profit squeeze 65, 66, 116 profitability constrains 30 falling 94, 131 of the financial sector 51 and wages 60 profits easy 15 excess 81, 90 falling 29, 72, 94, 116, 117 privatising 10 rates 70, 94, 101 realisation of 108 proletarianisation 60, 62 property markets crash in US and UK (1973–75) 8, 171–2, 261 overextension in 85 property market-led Nordic and Japanese bank crises 261 property-led crises (2007–10) 10, 261 real estate bubble 261 recession in UK (after 1987) 261 property rights 69, 81–2, 90, 122, 179, 198, 233, 244, 245 Property Share Price Index (UK) 7 property values 171, 181, 197, 248 prostitution 15 protectionism 31, 33, 43, 211 punctuated equilibrium theory of natural evolution 130 Putin, Vladimir 29, 80 Q Q’ing dynasty 194 quotas 16 R R&D (research and development) 92, 95–6 race issues 104 racism 61, 258 radical egalitarianism 230–34 railroads 42, 49, 191 Railwan, rise of (1970s) 35 rare earth metals 188 raw materials 6, 16, 37, 58, 77, 101, 113, 140, 144, 234 RBS 20 Reagan, Ronald 15, 64, 131, 141 Reagan-Thatcher counter revolution (early 1980s) 71 Reagan administration 1, 19 Reagan recession (1980–82) 60, 261 Real Estate Investment Trusts (US) 7 recession 1970s 171–2 language of 27 Reagan (1980–82) 60, 261 Red Brigade 254 reforestation 184 refrigeration 74 reinvestment 43, 45, 66–7, 110–12, 116 religious fundamentalism 203 religious issues 104 remittances 38, 140, 147 rentiers 40 rents differential rent 81, 82, 83 on intellectual property rights 221 land 182 monetisation of 48, 109 monopoly 51, 81–2, 83 oil 83 on patents 221 rising 181 reproduction schemas 70 Republican Party (US) 11, 141 reserve price 81 resource values 234 Ricardo, David 72, 94 risks, socialising 10 robbery 44 Robinson, Joan 238 robotisation 14, 136 Rockefeller, John D. 98 Rockefeller brothers 131 Rockefeller foundation 44, 186 Roman Empire 194 Roosevelt, Franklin D. 71 Rothschild family 98, 163 Royal Society 91, 156 royalties 40 Rubin, Robert 98 ‘rule of experts’ 99, 100–101 Russia bankruptcy (1998) 246, 261 capital flight crisis 261 defaults on its debt (1998) 6 oil and natural gas flow to Ukraine 68 oil production 6 oligarchs 29 see also Soviet Union S Saddam Hussein 210 Saint-Simon, Claude Henri de Rouvroy, Comte de 49 Saint-Simonians 87, 168 Salomon Brothers 24 Samuelson, Robert 235, 239 Sandino, Augusto 189 Sanford, Charles 98 satellites 156 savings 140 Scholes, Myron 100 Schumer, Charles 11 Schumpeter, Joseph 46 Seattle battle of (1999) 38, 227 general strike (1918) 243 software development in 195 Second World War 32, 168–70, 214 sectarianism 252 securitisation 17, 36, 42 Sejong, South Korea 124–6 service industries 41 sexism 61 sexual preferences issues 104, 131, 176 Shanghai Commune (1967) 243 shark hunting 73, 76 Shell Oil 79, 251 Shenzhen, China 36 shop floor organisers (shop stewards) 103 Silicon Valley 162, 195, 216 Singapore follows Japanese model 92 industrialisation 68 rise of (1970s) 35 slavery 144 domestic 15 slums 16, 151–2, 176, 178–9 small operators, dispossession of 50 Smith, Adam 90, 164 The Wealth of Nations 35 social democracy 255 ‘social democratic’ consensus (1960s) 64 social inequality 224 social relations 101, 102, 104, 105, 119, 121, 122, 123, 126, 127, 135–9, 152, 240 loss of 246 social security 224 social services 256 social struggles 193 social welfarism 255 socialism 136, 223, 228, 242, 249 compared with communism 224 solidarity economy 151, 254 Soros, George 44, 98, 221 Soros foundation 44 South Korea Asian Currency Crisis 261 excessive urban development 8 falling exports 6 follows Japanese model 92 rise of (1970s) 35 south-east Asia: crash of 1997–8 6, 8, 49, 246 Soviet Union in alliance with US against fascism 169 break-up of 208, 217, 227 collapse of communism 16 collectivisation of agriculture 250 ‘space race’ (1960s and 1970s) 156 see also Russia space domination of 156–8, 207 fixed spaces 190 ‘space race’ (1960s and 1970s) 156 Spain property-led crisis (2007–10) 5–6, 261 unemployment 6 spatial monopoly 164–5 special drawing rights 32, 34 special economic zones 36 special investment vehicles 36, 262 special purpose entities 262 speculation 52–3 speculative binges 52 speed-up 41, 42 stagflation 113 stagnation 116 Stalin, Joseph 136, 250 Standard Oil 98 state formation 196, 197, 202 state-corporate nexus 204 ‘space race’ (1960s and 1970s) 156 state-finance nexus 204, 205, 237, 256 blind belief in its corrective powers 55 ‘central nervous system’ for capital accumulation 54 characteristics of a feudal institution 55 and the current crisis 118 defined 48 failure of 56–7 forms of 55 fusion of state and financial powers 115 innovation in 85 international version of 51 overwhelmed by centralised credit power 52 pressure on 54 radical reconstruction of 131 role of 51 and state-corporate research nexus 97 suburbanisation 171 tilts to favour particular interests 56 statistical arbitrage strategies 262 steam engine, invention of 78, 89 Stiglitz, Joseph 45 stimulus packages 261 stock markets crash (1929) 211, 217 crashes (2001–02) 261 massive liquidity injections (1987) 236, 261 Stockton, California 2 ’structural adjustment’ programmes vii, 19, 261 subcontracting 131 subprime loans 1 subprime mortgage crisis 2 substance abuse 151 suburbanisation 73, 74, 76–7, 106–7, 169, 170, 171, 181 Summers, Larry 11, 44–5, 236 supermarket chains 50 supply-side theory 237 surveillance 92, 204 swaps credit 21 Credit Default 24, 262 currency 262 equity index 262 interest rate 24, 262 Sweden banking system crash (1992) 8, 45 Nordic crisis 8 Yugoslav immigrants 14 Sweezey, Paul 52, 113 ‘switching crises’ 93 systematic ‘moral hazard’ 10 systemic risks vii T Taipei: computer chips and household technologies in 195 Taiwan falling exports 6 follows Japanese model 92 takeovers 49 Taliban 226 tariffs 16 taxation 244 favouring the rich 45 inheritance 44 progressive 44 and the state 48, 145 strong tax base 149 tax rebates 107 tax revenues 40 weak tax base 150 ‘Teamsters for Turtles’ logo 55 technological dynamism 134 technologies change/innovation/new 33, 34, 63, 67, 70, 96–7, 98, 101, 103, 121, 127, 134, 188, 193, 221, 249 electronic 131–2 ‘green’ 188, 221 inappropriate 47 labour fights new technologies 60 labour-saving 14–15, 60, 116 ‘rule of experts’ 99, 100–101 technological comparative edge 95 transport 62 tectonic movements 75 territorial associations 193–4, 195, 196 territorial logic 204–5 Thailand Asian Currency Crisis 261 excessive urban development 8 Thatcher, Margaret, Baroness 15, 38, 64, 131, 197, 255 Thatcherites 224 ‘Third Italy’, Bologna 162, 195 time-space compression 158 time-space configurations 190 Toys ‘R’ Us 17 trade barriers to 16 collapses in foreign trade (2007–10) 261 fall in global international trade 6 increase in volume of trading 262 trade wars 211 trade unions 63 productivity agreements 60 and US auto industry 56 trafficking human 44 illegal 43 training 59 transport costs 164 innovations 42, 93 systems 16, 67 technology 62 Treasury Bill futures 262 Treasury bond futures 262 Treasury instruments 262 TRIPS agreement 245 Tronti, Mario 102 Trotskyists 253, 255 Tucuman uprising (1969) 243 Turin: communal ‘houses of the people’ 243 Turin Workers Councils 243 U UBS 20 Ukraine, Russian oil and natural gas flow to 68 ultraviolet radiation 187 UN Declaration of Human Rights 234 UN development report (1996) 110 Un-American Activities Committee hearings 169 underconsumptionist traditions 116 unemployment 131, 150 benefits 60 creation of 15 in the European Union 140 job losses 93 lay-offs 60 mass 6, 66, 261 rising 15, 37, 113 and technological change 14, 60, 93 in US 5, 6, 60, 168, 215, 261 unionisation 103, 107 United Fruit Company 189 United Kingdom economy in serious difficulty 5 forced to nationalise Northern Rock 2 property market crash 261 real average earnings 13 train network 28 United Nations 31, 208 United States agricultural subsidies 79 in alliance with Soviet Union against fascism 169 anti-trust legislation 52 auto industry 56 blockbusting neighbourhoods 248 booming but debt-filled consumer markets 141 and capital surplus absorption 31–2 competition in labour markets 61 constraints to excessive concentration of money power 44–5 consumerism 109 conumer debt service ratio 18 cross-border leasing with Germany 142–3 debt 158, 206 debt bubble 18 fiscal crises of federal, state and local governments 261 health care 28–9 heavy losses in derivatives 261 home ownership 3 housing foreclosure crises 1–2, 4, 38, 166 industries dependent on trade seriously hit 141 interventionism in Iraq and Afghanistan 210 investment bankers rescued 261 investment failures in real estate 261 lack of belief in theory of evolution 129 land speculation scheme 187–8 oil issue 76–7, 79, 80, 121, 170, 210, 261 population growth 146 proletarianisation 60 property-led crisis (2007–10) 261 pursuit of science and technology 129 radical anti-authoritarianism 199 Reagan Recession 261 rescue of financial institutions 261 research universities 95 the reversing origins of US corporate profits (1950–2004) 22 the right to the city movement 257 ‘right to work’ states 65 savings and loan crisis (1984–92) 8 secondary mortgage market 173 ‘space race’ (1960s and 1970s) 156 suburbs 106–7, 149–50, 170 train network 28 unemployment 5, 6, 60, 168, 215, 261 unrestricted capitalist development 113 value of US stocks and homes, as a percentage of GDP 22 and Vietnam War 171 wages 13, 62 welfare provision 141 ‘urban crisis’ (1960s) 170 urban ‘heat islands’ 77 urban imagineering 193 urban social movements 180 urbanisation 74, 85, 87, 119, 131, 137, 166, 167, 172–3, 174, 240, 243 US Congress 5, 169, 187–8 US Declaration of Independence 199 US National Intelligence Council 34–5 US Senate 79 US Supreme Court 179 US Treasury and Goldman Sachs 11 rescue of Continental Illinois Bank 261 V Vanderbilt family 98 Vatican 44 Veblen, Thorstein 181–2 Venezuela 256 oil production 6 Vietnam War 32, 171 Volcker, Paul 2, 236 Volcker interest rate shock 261 W wage goods 70, 107, 112, 162 wages and living standards 89 a living wage 63 national minimum wage 63 rates 13, 14, 59–64, 66, 109 real 107 repression 12, 16, 21, 107, 110, 118, 131, 172 stagnation 15 wage bargaining 63 Wal-Mart 17, 29, 64, 89 Wall Street, New York 35, 162, 200, 219, 220 banking institutions 11 bonuses 2 ‘Party of Wall Street’ 11, 20, 200 ‘War on Terror’ 34, 92 warfare 202, 204 Wasserstein, Bruce 98 waste disposal 143 Watt, James 89 wealth accumulation by capitalist class interests 12 centralisation of 10 declining 131 flow of 35 wealth transfer 109–10 weather systems 153–4 Weather Underground 254 Weill, Sandy 98 Welch, Jack 98 Westphalia, Treaty of (1648) 91 Whitehead, Alfred North 75 Wilson, Harold 56 wind turbines 188 women domestic slavery 15 mobilisation of 59, 60 prostitution 15 rights 176, 251, 258 wages 62 workers’ collectives 234 working hours 59 World Bank 36, 51, 69, 192, 200, 251 ‘Fifty Years is Enough’ campaign 55 predicts negative growth in the global economy 6 World Bank Development Report (2009) 26 World Trade Organisation (WTO) 200, 227 agreements 69 street protests against (Seattle, 1999) 55 TRIPS agreement 245 and US agricultural subsidies 79 WorldCom 8, 100, 261 worldwide web 42 Wriston, Walter 19 X X-rays 99 Y Yugoslavia dissolution of 208 ethnic cleansings 247 Z Zapatista revolutionary movement 207, 226, 252 Zola, Émile 53 The Belly of Paris 168 The Ladies’ Paradise 168

**
Frequently Asked Questions in Quantitative Finance
** by
Paul Wilmott

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Albert Einstein, asset allocation, beat the dealer, Black-Scholes formula, Brownian motion, butterfly effect, capital asset pricing model, collateralized debt obligation, Credit Default Swap, credit default swaps / collateralized debt obligations, delta neutral, discrete time, diversified portfolio, Edward Thorp, Emanuel Derman, Eugene Fama: efficient market hypothesis, fixed income, fudge factor, implied volatility, incomplete markets, interest rate derivative, interest rate swap, iterative process, London Interbank Offered Rate, Long Term Capital Management, Louis Bachelier, mandelbrot fractal, margin call, market bubble, martingale, Myron Scholes, Norbert Wiener, Paul Samuelson, quantitative trading / quantitative ﬁnance, random walk, regulatory arbitrage, risk/return, Sharpe ratio, statistical arbitrage, statistical model, stochastic process, stochastic volatility, transaction costs, urban planning, value at risk, volatility arbitrage, volatility smile, Wiener process, yield curve, zero-coupon bond

However, when deriving the famous option-pricing models we rely on a dynamic strategy, called delta hedging, in which a portfolio consisting of an option and stock is constantly adjusted by purchase or sale of stock in a very specific manner. Now we can see that there are several types of arbitrage that we can think of. Here is a list and description of the most important.• A static arbitrage is an arbitrage that does not require rebalancing of positions • A dynamic arbitrage is an arbitrage that requires trading instruments in the future, generally contingent on market states • A statistical arbitrage is not an arbitrage but simply a likely profit in excess of the risk-free return (perhaps even suitably adjusted for risk taken) as predicted by past statistics • Model-independent arbitrage is an arbitrage which does not depend on any mathematical model of financial instruments to work. For example, an exploitable violation of put-call parity or a violation of the relationship between spot and forward prices, or between bonds and swaps • Model-dependent arbitrage does require a model.

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Cointegration is a useful technique for studying relationships in multivariate time series, and provides a sound methodology for modelling both long-run and short-run dynamics in a financial system. Example Suppose you have two stocks S1 and S2 and you find that S1 − 3 S2 is stationary, so that this combination never strays too far from its mean. If one day this ‘spread’ is particularly large then you would have sound statistical reasons for thinking the spread might shortly reduce, giving you a possible source of statistical arbitrage profit. This can be the basis for pairs trading. Long Answer The correlations between financial quantities are notoriously unstable. Nevertheless correlations are regularly used in almost all multivariate financial problems. An alternative statistical measure to correlation is cointegration. This is probably a more robust measure of the linkage between two financial quantities but as yet there is little derivatives theory based on the concept.

**
Adaptive Markets: Financial Evolution at the Speed of Thought
** by
Andrew W. Lo

Albert Einstein, Alfred Russel Wallace, algorithmic trading, Andrei Shleifer, Arthur Eddington, Asian financial crisis, asset allocation, asset-backed security, backtesting, bank run, barriers to entry, Berlin Wall, Bernie Madoff, bitcoin, Bonfire of the Vanities, bonus culture, break the buck, Brownian motion, business process, butterfly effect, capital asset pricing model, Captain Sullenberger Hudson, Carmen Reinhart, Chance favours the prepared mind, collapse of Lehman Brothers, collateralized debt obligation, commoditize, computerized trading, corporate governance, creative destruction, Credit Default Swap, credit default swaps / collateralized debt obligations, cryptocurrency, Daniel Kahneman / Amos Tversky, delayed gratification, Diane Coyle, diversification, diversified portfolio, double helix, easy for humans, difficult for computers, Ernest Rutherford, Eugene Fama: efficient market hypothesis, experimental economics, experimental subject, Fall of the Berlin Wall, financial deregulation, financial innovation, financial intermediation, fixed income, Flash crash, Fractional reserve banking, framing effect, Gordon Gekko, greed is good, Hans Rosling, Henri Poincaré, high net worth, housing crisis, incomplete markets, index fund, interest rate derivative, invention of the telegraph, Isaac Newton, James Watt: steam engine, job satisfaction, John Maynard Keynes: Economic Possibilities for our Grandchildren, John Meriwether, Joseph Schumpeter, Kenneth Rogoff, London Interbank Offered Rate, Long Term Capital Management, loss aversion, Louis Pasteur, mandelbrot fractal, margin call, Mark Zuckerberg, market fundamentalism, martingale, merger arbitrage, meta analysis, meta-analysis, Milgram experiment, money market fund, moral hazard, Myron Scholes, Nick Leeson, old-boy network, out of africa, p-value, paper trading, passive investing, Paul Lévy, Paul Samuelson, Ponzi scheme, predatory finance, prediction markets, price discovery process, profit maximization, profit motive, quantitative hedge fund, quantitative trading / quantitative ﬁnance, RAND corporation, random walk, randomized controlled trial, Renaissance Technologies, Richard Feynman, Richard Feynman, Richard Feynman: Challenger O-ring, risk tolerance, Robert Shiller, Robert Shiller, short selling, sovereign wealth fund, statistical arbitrage, Steven Pinker, stochastic process, survivorship bias, The Great Moderation, the scientific method, The Wealth of Nations by Adam Smith, The Wisdom of Crowds, theory of mind, Thomas Malthus, Thorstein Veblen, Tobin tax, too big to fail, transaction costs, Triangle Shirtwaist Factory, ultimatum game, Upton Sinclair, US Airways Flight 1549, Walter Mischel, Watson beat the top human players on Jeopardy!, WikiLeaks, Yogi Berra, zero-sum game

They began their conversations in almost exactly the same way: “Have you heard of anything unusual going on with other hedge funds . . . ?” After the third call, I realized that something significant was occurring on Wall Street, something that was off the radar of academic theory or hedge fund practice. 284 • Chapter 8 I knew all three alumni were working at hedge funds engaged in the same broad category of strategies known as “statistical arbitrage,” or “statarb” for short—highly sophisticated quantitative algorithms and computerized trading platforms involving long and short positions in hundreds of stocks. These were the same kinds of strategies used by Morgan Stanley and D. E. Shaw in the 1980s (see chapter 7). This seemed like too much of a coincidence. And the fact that these three were calling up their former finance professor to ask about what’s going on in the industry suggested that they must have been really desperate for information!

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Also, weight these positions in proportion to the amount the stocks deviate from that index, that 286 • Chapter 8 is, the bigger the deviation, the more weight you give them in your portfolio. This is a more sophisticated version of chapter 7’s hedge fund example of buying Apricot Computers and simultaneously selling BlueBerry Devices, which is known as a “pairs strategy” (apologies for the pun). Since having been introduced at Morgan Stanley in the early 1980s, pairs strategies have radiated into hundreds of different varieties of statistical arbitrage, the strategies growing more elaborate and refined with each iteration, like the radiation of new species that populate unoccupied ecological niches. The motivation for these strategies is often mean reversion—the idea that what goes up must eventually come down, and vice versa. If stock prices revert to the mean, then past “losers” should appreciate and past “winners” should depreciate.

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., 100 Sobel, Russell, 206 social Darwinism, 215 social exclusion, 85–86 social media, 55, 270, 405 Société Générale, 60–61 Society of Mind, The (Minsky), 132–133 sociobiology, 170–174, 216–217 Sociobiology (Wilson), 170–171 Solow, Herbert, 395 Soros, George, 6, 219, 222–223, 224, 227, 234, 244, 277 sovereign wealth funds, 230, 299, 409–410 Soviet Union, 411 Space Shut tle Challenger, 12–16, 24, 38 specialization, 217 speech synthesis, 132 Sperry, Roger, 113–114 “spoofi ng,” 360 Springer, James, 159 SR-52 programmable calculator, 357 stagflation, 37 Standard Portfolio Analysis of Risk (SPAN), 369–370 Stanton, Angela, 338 starfish, 192, 242 Star Trek, 395–397, 411, 414 stationarity, 253–255, 279, 282 statistical arbitrage (“statarb”), 284, 286, 288–291, 292–293, 362 statistical tests, 47 Steenbarger, Brett, 94 Stein, Carolyn, 69 sterilization, 171, 174 Stiglitz, Joseph, 224, 278, 310 Stocks for the Long Run (Siegel), 253 stock splits, 24, 47 Stone, Oliver, 346 Stone Age, 150, 163, 165 stone tools, 150–151, 153 stop-loss orders, 359 Strasberg, Lee, 105 stress, 3, 75, 93, 101, 122, 160–161, 346, 413–415 strong connectedness, 374 Strong Story Hypothesis, 133 Strumpf, Koleman, 39 “stub quotes,” 360 subjective value, 100 sublenticular extended amygdala, 89 subprime mortgages, 290, 292, 293, 297, 321, 327, 376, 377, 410 482 • Index Sugihara, George, 366 suicide, 160 Sullenberger, Chesley, 381 Summers, Lawrence (Larry), 50, 315–316, 319–320, 379 sunlight, 108 SuperDot (trading system), 236 supply and demand curves, 29, 30, 31–33, 34 Surowiecki, James, 5, 16 survey research, 40 Sussman, Donald, 237–238 swaps, 243, 298, 300 Swedish Twin Registry, 161 systematic bias, 56 systematic risk, 194, 199–203, 204, 205, 250–251, 348, 389 systemic risk, 319; Bank of England’s measurement of, 366–367; government as source of, 361; in hedge fund industry, 291, 317; of large vs. small shocks, 315; managing, 370–371, 376–378, 387; transparency of, 384–385; trust linked to, 344 Takahashi, Hidehiko, 86 Tanner, Carmen, 353 Tanzania, 150 Tartaglia, Nunzio, 236 Tattersall, Ian, 150, 154 Tech Bubble, 40 telegraphy, 356 Tennyson, Alfred, Baron, 144 testosterone, 108, 337–338 Texas hold ’em, 59–60 Texas Instruments, 357, 384 Thackray, John, 234 Thales, 16 Théorie de la Spéculation (Bachelier), 19 theory of mind, 109–111 thermal homeostasis, 367–368, 370 This Time Is Different (Reinhart and Rogoff ), 310 Thompson, Robert, 1, 81–82, 83, 103–104 three-body problem, 214 ticker tape machine, 356 tight coupling, 321, 322, 361, 372Tiger Fund, 234 Tinker, Grant, 395 Tobin tax, 245 Tokugawa era, 17 Tooby, John, 173, 174 tool use, 150–151, 153, 162, 165 “toxic assets,” 299 trade execution, 257, 356 trade secrets, 284–285, 384 trading volume, 257, 359 transactions tax, 245 Treynor, Jack, 263 trial and error, 133, 141, 142, 182, 183, 188, 198, 265 Triangle Shirtwaist Fire, 378–379 tribbles, 190–205, 216 Trivers, Robert, 172 trolley dilemma, 339 Trusty, Jessica, 120 Tversky, Amos, 55, 58, 66–67, 68–69, 70–71, 90, 106, 113, 388 TWA Flight 800, 84–85 twins, 159, 161, 348 “two-legged goat effect,” 155 UBS, 61 Ultimatum Game, 336–338 uncertainty, 212, 218; risk vs., 53–55, 415 unemployment, 36–37 unintended consequences, 7, 248, 269, 330, 358, 375 United Kingdom, 222–223, 242, 377 University of Chicago, 22 uptick rule, 233 Urbach-Wiethe disease, 82–83 U.S.

**
No One Would Listen: A True Financial Thriller
** by
Harry Markopolos

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backtesting, barriers to entry, Bernie Madoff, call centre, centralized clearinghouse, correlation coefficient, diversified portfolio, Edward Thorp, Emanuel Derman, Eugene Fama: efficient market hypothesis, family office, financial thriller, fixed income, forensic accounting, high net worth, index card, Long Term Capital Management, Louis Bachelier, offshore financial centre, Ponzi scheme, price mechanism, quantitative trading / quantitative ﬁnance, regulatory arbitrage, Renaissance Technologies, risk-adjusted returns, risk/return, rolodex, Sharpe ratio, statistical arbitrage, too big to fail, transaction costs, your tax dollars at work

Then I began putting things in, taking things out, testing and retesting and back-testing to see how each package would perform in various market environments. I did this knowing full well that Bernie hadn’t bothered to do any of this. He just sat down and made it up. It’s considerably easier that way—and you always get the results you want! Eventually I developed a product we named the Rampart Options Statistical Arbitrage. It was a product that would do extremely well in a market environment with low to moderately high volatility. As long as the market didn’t move more than 8 to 10 percent over a 10- to 15-day trading period, it would perform very well. Of course, if there was extremely high volatility or if the market did make a substantial move in either direction over that period, it was possible to lose about 50 percent of its value.

…

I’m president of the four-thousand-member Boston Security Analysts Society, and I have evidence here of the largest fraud in history,” and handed the envelope to him, he might have taken it seriously. But I did what seemed safest at that time. Slightly more than three years had passed since we had discovered Madoff. We had compiled a strong case against him. Our original reason for trying to bring him down—that he was competition we couldn’t compete against—had ended with the failure of the Rampart Options Statistical Arbitrage strategy. But we were so deeply into this thing that it became impossible to put it down. We had actually developed into a pretty good team. We had two investigators in the field, Frank and Mike, and two quants in Neil and me able to find the defects in the materials they collected. And they did continue to add to our growing pile of evidence. Frank’s new job at Benchmark Plus caused him to spend most of his time with hedge fund and risk managers, and at some point in each conversation he never failed to ask them, “What do you know about Bernie?”

**
Market Risk Analysis, Quantitative Methods in Finance
** by
Carol Alexander

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asset allocation, backtesting, barriers to entry, Brownian motion, capital asset pricing model, constrained optimization, credit crunch, Credit Default Swap, discounted cash flows, discrete time, diversification, diversified portfolio, en.wikipedia.org, fixed income, implied volatility, interest rate swap, market friction, market microstructure, p-value, performance metric, quantitative trading / quantitative ﬁnance, random walk, risk tolerance, risk-adjusted returns, risk/return, Sharpe ratio, statistical arbitrage, statistical model, stochastic process, stochastic volatility, Thomas Bayes, transaction costs, value at risk, volatility smile, Wiener process, yield curve, zero-sum game

In Section II.5.4.6 we describe how to track an index using only a relatively small subset of assets. The index tracking regression model has the index return as the dependent variable, and the explanatory variables are the returns on the assets used to track the index. This can be extended to a regression model for enhanced indexation by replacing the dependent variable by the index return plus a fixed outperformance. A further extension is to statistical arbitrage Introduction to Linear Regression 183 strategies which take a long position on an enhanced indexation portfolio and a short position on the index futures. A case study on index tracking of the Dow Jones Industrial Average index is presented in Section II.5.4.7 where we use that fact that the tracking portfolio must be cointegrated with the index if the tracking error is to be stationary.

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(independent and identically distributed) variables central limit theorem 121 error process 148 financial modelling 186 GEV distribution 101 regression 148, 157, 175 stable distribution 106 stochastic process 134–5 Implicit function 185 Implied volatility 194, 196, 200–1 Implied volatility surface 200–1 Incremental change 31 Indefinite integral 15 Independent events 74 Independent and identically distributed (i.i.d.) variables central limit theorem 121 error process 148 financial modelling 186 GEV distribution 101 regression 148, 157, 175 stable distribution 106 stochastic process 134–5 284 Index Independent variable 72, 143 random 109–10, 115, 140 Index tracking regression model 182–3 Indicator function 6 Indices, laws 8 Indifference curves 248–9 Inequality constraint, minimum variance portfolio 245–6 Inference 72, 118–29, 141 central limit theorem 120–1 confidence intervals 72, 118–24 critical values 118–20, 122–3, 129 hypothesis tests 124–5 means 125–7 non-parametric tests 127–9 quantiles 118–20 variance 126–7 Inflexion points 14, 35 Information matrix 133, 203 Information ratio 257, 259 Instability, finite difference approximation 209–10 Integrated process, discrete time 134–6 Integration 3, 15–16, 35 Intensity, Poisson distribution 88 Interest rate 34, 171–3 Interest rate sensitivity 34 Interpolation 186, 193–200, 223 cubic spline 197–200 currency option 195–7 linear/bilinear 193–5 polynomial 195–7 Intrinsic value of option 215 Inverse function 6–7, 35 Inverse matrix 41, 43–4, 133 Investment bank 225 Investment 2, 256–7 Investor risk tolerance 230–1, 237 Irrational numbers 7 Isoquants 248 Iteration 186–93, 223 bisection method 187–8 gradient method 191–3 Newton–Raphson method 188–91 Itô’s lemma 138–9, 219 iTraxx Europe credit spread index 172 Jacobian matrix 202 Jarque–Bera normality test Jensen’s alpha 257–8 158 Joint density function 114–15 Joint distribution function 114–15 Joint probability 73 Jumps, Poisson process 139 Kappa indices 263–5 Kernel 106–7 Kolmogorov–Smirnoff test 128 Kuhn–Tucker conditions 30 Kurtosis 81–3, 94–6, 205–6 Lagrange multiplier (LM) test 124, 167 Lagrange multiplier 29–30, 244 Lagrangian function 29–30 Lattice 186, 210–16, 223 Laws of indices 8 Least squares OLS estimation 143–4, 146–50, 153–61, 163, 170–1, 176 problems 201–2 weighted 179 Leptokurtic density 82–3 Levenberg–Marquardt algorithm 202 Lévy distribution 105 Likelihood function 72, 130–31 MLE 72, 130–34, 141, 202–3 optimization 202–3 ratio test 124, 167 Linear function 4–5 Linear interpolation 193–5 Linear portfolios 33, 35 correlation matrix 55–60 covariance matrix 55–61 matrix algebra 55–61 P&L 57–8 returns 25, 56–8 volatility 57–8 Linear regression 143–84 Linear restrictions, hypothesis tests 165–6 Linear transformation 48 Linear utility function 233 LM (Lagrange multiplier) 29–30, 124, 167, 244 Local maxima 14, 28–9 Local minima 14, 28–9 Logarithmic utility function 232 Logarithm, natural 1, 9, 34–5 Log likelihood 131–2 Lognormal distribution 93–4, 213–14, 218–20 Log returns 16, 19–25 Index Long portfolio 3, 17, 238–40 Long-short portfolio 17, 20–1 Low discrepancy sequences 217 Lower triangular square matrix 62, 64 LR (likelihood ratio) test 124, 167 LU decomposition, matrix 63–4 Marginal densities 108–9 Marginal distributions 108–9 Marginal probability 73–4 Marginal utility 229–30 Market behaviour 180–1 Market beta 250 Market equilibrium 252 Market maker 2 Market microstructure 180 Market portfolio 250–1 Market risk premium, CAPM 253 Markets complete 212 regime-specific behaviour 96–7 Markowitz, Harry 226, 238, 266 Markowitz problem 200–1, 226, 244–5 Matrix algebra 37–70 application 38–47 decomposition 61–4, 70 definite matrix 37, 46–7, 54, 58–9, 70 determinant 41–3, 47 eigenvalues/vectors 37–8, 48–54, 59–61, 70 functions of several variables 27–31 general linear model 161–2 hypothesis testing 165–6 invariant 62 inverse 41, 43–4 law 39–40 linear portfolio 55–61 OLS estimation 159–61 PCA 64–70 product 39–40 quadratic form 37, 45–6, 54 regression 159–61, 165–6 simultaneous equation 44–5 singular matrix 40–1 terminology 38–9 Maxima 14, 28–31, 35 Maximum likelihood estimation (MLE) 72, 130–4, 141, 202–3 Mean confidence interval 123 Mean excess loss 104 Mean reverting process 136–7 Mean 78–9, 125–6, 127, 133–4 285 Mean square error 201 Mean–variance analysis 238 Mean–variance criterion, utility theory 234–7 Minima 14, 28–31, 35 Minimum variance portfolio 3, 240–7 Mixture distribution 94–7, 116–17, 203–6 MLE (maximum likelihood estimation) 72, 130–4, 141, 202–3 Modified duration 2 Modified Newton method 192–3 Moments probability distribution 78–83, 140 sample 82–3 Sharpe ratio 260–3 Monotonic function 13–14, 35 Monte Carlo simulation 129, 217–22 correlated simulation 220–2 empirical distribution 217–18 random numbers 217 time series of asset prices 218–20 Multicollinearity 170–3, 184 Multiple restrictions, hypothesis testing 166–7 Multivariate distributions 107–18, 140–1 bivariate 108–9, 116–17 bivariate normal mixture 116–17 continuous 114 correlation 111–14 covariance 110–2 independent random variables 109–10, 114 normal 115–17, 220–2 Student t 117–18 Multivariate linear regression 158–75 BHP Billiton Ltd 162–5, 169–70, 174–5 confidence interval 167–70 general linear model 161–2 hypothesis testing 163–6 matrix notation 159–61 multicollinearity 170–3, 184 multiple regression in Excel 163–4 OLS estimation 159–61 orthogonal regression 173–5 prediction 169–70 simple linear model 159–61 Multivariate Taylor expansion 34 Mutually exclusive events 73 Natural logarithm 9, 34–5 Natural spline 198 Negative definite matrix 46–7, 54 Newey–West standard error 176 286 Index Newton–Raphson iteration 188–91 Newton’s method 192 No arbitrage 2, 179–80, 211–12 Non-linear function 1–2 Non-linear hypothesis 167 Non-linear portfolio 33, 35 Non-parametric test 127–9 Normal confidence interval 119–20 Normal distribution 90–2 Jarque–Bera test 158 log likelihood 131–2 mixtures 94–7, 140–1, 203–6 multivariate 115–16, 220–2 standard 218–19 Normalized eigenvector 51–3 Normalized Student t distribution 99 Normal mixture distribution 94–7, 116–17, 140–1 EM algorithm 203–6 kurtosis 95–6 probabilities of variable 96–7 variance 94–6 Null hypothesis 124 Numerical methods 185–223 binomial lattice 210–6 inter/extrapolation 193–200 iteration 186–93 Objective function 29, 188 Offer price 2 Oil index, Amex 162–3, 169–70, 174 OLS (ordinary least squares) estimation 143–4, 146–50 autocorrelation 176 BHP Billiton Ltd case study 163 heteroscedasticity 176 matrix notation 159–61 multicollinearity 170–1 properties of estimator 155–8 regression in Excel 153–5 Omega statistic 263–5 One-sided confidence interval 119–20 Opportunity set 246–7, 251 Optimization 29–31, 200–6, 223 EM algorithm 203–6 least squares problems 201–2 likelihood methods 202–3 numerical methods 200–5 portfolio allocation 3, 181 Options 1–2 American 1, 215–16 Bermudan 1 call 1, 6 currency 195–7 European 1–2, 195–6, 212–13, 215–16 finite difference approximation 206–10 pay-off 6 plain vanilla 2 put 1 Ordinary least squares (OLS) estimation 143–4, 146–50 autocorrelation 176 BHP Billiton Ltd case study 163 heteroscedasticity 176 matrix notation 159–61 multicollinearity 170–1 properties of estimators 155–8 regression in Excel 153–5 Orthogonal matrix 53–4 Orthogonal regression 173–5 Orthogonal vector 39 Orthonormal matrix 53 Orthonormal vector 53 Out-of-sample testing 183 P&L (profit and loss) 3, 19 backtesting 183 continuous time 19 discrete time 19 financial returns 16, 19 volatility 57–8 Pairs trading 183 Parabola 4 Parameter notation 79–80 Pareto distribution 101, 103–5 Parsimonious regression model 153 Partial derivative 27–8, 35 Partial differential equation 2, 208–10 Pay-off, option 6 PCA (principal component analysis) 38, 64–70 definition 65–6 European equity indices 67–9 multicollinearity 171 representation 66–7 Peaks-over-threshold model 103–4 Percentage returns 16, 19–20, 58 Percentile 83–5, 195 Performance measures, RAPMs 256–65 Period log returns 23–5 Pi 7 Index Piecewise polynomial interpolation 197 Plain vanilla option 2 Points of inflexion 14, 35 Poisson distribution 87–9 Poisson process 88, 139 Polynomial interpolation 195–7 Population mean 123 Portfolio allocation 237–49, 266 diversification 238–40 efficient frontier 246–9, 251 Markowitz problem 244–5 minimum variance portfolio 240–7 optimal allocation 3, 181, 247–9 Portfolio holdings 17–18, 25–6 Portfolio mathematics 225–67 asset pricing theory 250–55 portfolio allocation 237–49, 266 RAPMs 256–67 utility theory 226–37, 266 Portfolios bond portfolio 37 delta-hedged 208 linear 25, 33, 35, 55–61 minimum variance 3, 240–7 non-linear 33, 35 rebalancing 17–18, 26, 248–9 returns 17–18, 20–1, 91–2 risk factors 33 risk free 211–12 stock portfolio 37 Portfolio volatility 3 Portfolio weights 3, 17, 25–6 Positive definite matrices 37, 46–7, 70 correlation matrix 58–9 covariance matrix 58–9 eigenvalues/vectors 54 stationary point 28–9 Posterior probability 74 Post-sample prediction 183 Power series expansion 9 Power utility functions 232–3 Prediction 169–70, 183 Price discovery 180 Prices ask price 2 asset price evolution 87 bid price 2 equity 172 generating time series 218–20 lognormal asset prices 213–14 market microstructure 180 offer price 2 stochastic process 137–9 Pricing arbitrage pricing theory 257 asset pricing theory 179–80, 250–55 European option 212–13 no arbitrage 211–13 Principal cofactors, determinants 41 Principal component analysis (PCA) 38, 64–70 definition 65–6 European equity index 67–9 multicollinearity 171 representation 66–7 Principal minors, determinants 41 Principle of portfolio diversification 240 Prior probability 74 Probability and statistics 71–141 basic concepts 72–85 inference 118–29 laws of probability 73–5 MLE 130–4 multivariate distributions 107–18 stochastic processes 134–9 univariate distribution 85–107 Profit and loss (P&L) 3, 19 backtesting 183 continuous time 19 discrete time 19 financial returns 16, 19 volatility 57–8 Prompt futures 194 Pseudo-random numbers 217 Put option 1, 212–13, 215–16 Quadratic convergence 188–9, 192 Quadratic form 37, 45–6, 54 Quadratic function 4–5, 233 Quantiles 83–5, 118–20, 195 Quartiles 83–5 Quasi-random numbers 217 Random numbers 89, 217 Random variables 71 density/distribution function 75 i.i.d. 101, 106, 121, 135, 148, 157, 175 independent 109–10, 116, 140–1 OLS estimators 155 sampling 79–80 Random walks 134–7 Ranking investments 256 287 288 Index RAPMs (risk adjusted performance measures) 256–67 CAPM 257–8 kappa indices 263–5 omega statistic 263–5 Sharpe ratio 250–1, 252, 257–63, 267 Sortino ratio 263–5 Realization, random variable 75 Realized variance 182 Rebalancing of portfolio 17–18, 26, 248–9 Recombining tree 210 Regime-specific market behaviour 96–7, 117 Regression 143–84 autocorrelation 175–9, 184 financial applications 179–83 heteroscedasticity 175–9, 184 linear 143–84 multivariate linear 158–75 OLS estimator properties 155–8 simple linear model 144–55 Relative frequency 77–8 Relative risk tolerance 231 Representation, PCA 66–7 Residuals 145–6, 157, 175–8 Residual sum of squares (RSS) 146, 148–50, 159–62 Resolution techniques 185–6 Restrictions, hypothesis testing 165–7 Returns 2–3, 16–26 absolute 58 active 92, 256 CAPM 253–4 compounding 22–3 continuous time 16–17 correlated simulations 220 discrete time 16–17, 22–5 equity index 96–7 geometric Brownian motion 21–2 linear portfolio 25, 56–8 log returns 16, 19–25 long-short portfolio 20–1 multivariate normal distribution 115–16 normal probability 91–2 P&L 19 percentage 16, 19–20, 59–61 period log 23–5 portfolio holdings/weights 17–18 risk free 2 sources 25–6 stochastic process 137–9 Ridge estimator, OLS 171 Risk active risk 256 diversifiable risk 181 portfolio 56–7 systematic risk 181, 250, 252 Risk adjusted performance measure (RAPM) 256–67 CAPM 257–8, 266 kappa indices 263–5 omega statistic 263–5 Sharpe ratio 251, 252, 257–63, 267 Sortino ratio 263–5 Risk averse investor 248 Risk aversion coefficients 231–4, 237 Risk factor sensitivities 33 Risk free investment 2 Risk free portfolio 211 Risk free returns 2 Risk loving investors 248–9 Risk neutral valuation 211–12 Risk preference 229–30 Risk reversal 195–7 Risk tolerance 230–1, 237 Robustness 171 Roots 3–9, 187 RSS (residual sum of squares) 146, 148–50, 159–62 S&P 100 index 242–4 S&P 500 index 204–5 Saddle point 14, 28 Sample 76–8, 82–3 Sampling distribution 140 Sampling random variable 79–80 Scalar product 39 Scaling law 106 Scatter plot 112–13, 144–5 SDE (stochastic differential equation) 136 Security market line (SML) 253–4 Self-financing portfolio 18 Sensitivities 1–2, 33–4 Sharpe ratio 257–63, 267 autocorrelation adjusted 259–62 CML 251, 252 generalized 262–3 higher moment adjusted 260–2 making decision 258 stochastic dominance 258–9 Sharpe, William 250 Short portfolio 3, 17 22, 134, Index Short sales 245–7 Short-term hedging 182 Significance level 124 Similarity transform 62 Similar matrices 62 Simple linear regression 144–55 ANOVA and goodness of fit 149–50 error process 148–9 Excel OLS estimation 153–5 hypothesis tests 151–2 matrix notation 159–61 OLS estimation 146–50 reporting estimated model 152–3 Simulation 186, 217–22 Simultaneous equations 44–5 Singular matrix 40–1 Skewness 81–3, 205–6 Smile fitting 196–7 SML (security market line) 253–4 Solver, Excel 186, 190–1, 246 Sortino ratio 263–5 Spectral decomposition 60–1, 70 Spline interpolation 197–200 Square matrix 38, 40–2, 61–4 Square-root-of-time scaling rule 106 Stable distribution 105–6 Standard deviation 80, 121 Standard error 80, 169 central limit theorem 121 mean/variance 133–4 regression 148–9 White’s robust 176 Standard error of the prediction 169 Standardized Student t distribution 99–100 Standard normal distribution 90, 218–19 Standard normal transformation 90 Standard uniform distribution 89 Stationary point 14–15, 28–31, 35 Stationary stochastic process 111–12, 134–6 Stationary time series 64–5 Statistical arbitrage strategy 182–3 Statistical bootstrap 218 Statistics and probability 71–141 basic concepts 72–85 inference 118–29 law of probability 73–5 MLE 130–4 multivariate distribution 107–18 stochastic process 134–9 univariate distribution 85–107 Step length 192 Stochastic differential equation (SDE) 22, 134, 136 Stochastic dominance 227, 258–9 Stochastic process 72, 134–9, 141 asset price/returns 137–9 integrated 134–6 mean reverting 136–7 Poisson process 139 random walks 136–7 stationary 111–12, 134–6 Stock portfolio 37 Straddle 195–6 Strangle 195–7 Strictly monotonic function 13–14, 35 Strict stochastic dominance 258 Structural break 175 Student t distribution 97–100, 140 confidence intervals 122–3 critical values 122–3 equality of means/variances 127 MLE 132 multivariate 117–18 regression 151–3, 165, 167–8 simulation 220–2 Sum of squared residual, OLS 146 Symmetric matrix 38, 47, 52–4, 61 Systematic risk 181, 250, 252 Tail index 102, 104 Taylor expansion 2–3, 31–4, 36 applications 33–4 approximation 31–4, 36 definition 32–3 multivariate 34 risk factor sensitivities 33 Theory of asset pricing 179–80, 250–55 Tic-by-tic data 180 Time series asset prices/returns 137–9, 218–20 lognormal asset prices 218–20 PCA 64–5 Poisson process 88 regression 144 stochastic process 134–9 Tobin’s separation theorem 250 Tolerance levels, iteration 188 Tolerance of risk 230–1, 237 Total derivative 31 Total sum of square (TSS) 149, 159–62 289 290 Index Total variation, PCA 66 Tower law for expectations 79 Traces of matrix 62 Tradable asset 1 Trading, regression model 182–3 Transition probability 211–13 Transitive preferences 226 Transposes of matrix 38 Trees 186, 209–11 Treynor ratio 257, 259 TSS (total sum of squares) 149, 159–62 Two-sided confidence interval 119–21 Unbiased estimation 79, 81, 156–7 Uncertainty 71 Unconstrained optimization 29 Undiversifiable risk 252 Uniform distribution 89 Unit matrix 40–1 Unit vector 46 Univariate distribution 85–107, 140 binomial 85–7, 212–13 exponential 87–9 generalized Pareto 101, 103–5 GEV 101–3 kernel 106–7 lognormal 93–4, 213–14, 218–20 normal 90–7, 115–16, 131–2, 140, 157–8, 203–6, 217–22 normal mixture 94–7, 140, 203–6 Poisson 87–9 sampling 100–1 stable 105–6 Student t 97–100, 122–3, 126, 132–3, 140–1, 151–3, 165–8, 220–2 uniform 89 Upper triangular square matrix 62, 64 Utility theory 226–37, 266 mean–variance criterion 234–7 properties 226–9 risk aversion coefficient 231–4, 237 risk preference 229–30 risk tolerance 230–1, 237 Value at risk (VaR) 104–6, 185, 194 Vanna–volga interpolation method 196 Variance ANOVA 143–4, 149–50, 154, 159–60, 164–5 confidence interval 123–4 forecasting 182 minimum variance portfolio 3, 240–7 mixture distribution 94–6 MLE 133 normal mixture distribution 95–6 portfolio volatility 3 probability distribution 79–81 realized 182 tests on variance 126–7 utility theory 234–7 VaR (value at risk) 104–6, 185, 194 Vector notation, functions of several variables 28 Vectors 28, 37–9, 48–54, 59–61, 70 Venn diagram 74–5 Volatility equity 3, 172–3 implied volatility 194, 196–7, 200–1 interpolation 194, 196–7 linear portfolio 57–8 long-only portfolio 238–40 minimum variance portfolio 240–4 portfolio variance 3 Volpi, Leonardo 70 Vstoxx index 172 Waiting time, Poisson process 88–9 Wald test 124, 167 Weakly stationary process 135 Weak stochastic dominance 258–9 Weibull distribution 103 Weighted least squares 179 Weights, portfolio 3, 17, 25–6 White’s heteroscedasticity test 177–8 White’s robust standard errors 176 Wiener process 22, 136 Yield 1, 197–200 Zero matrix 39 Z test 126

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Investment: A History
** by
Norton Reamer,
Jesse Downing

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activist fund / activist shareholder / activist investor, Albert Einstein, algorithmic trading, asset allocation, backtesting, banking crisis, Berlin Wall, Bernie Madoff, break the buck, Brownian motion, buttonwood tree, California gold rush, capital asset pricing model, Carmen Reinhart, carried interest, colonial rule, credit crunch, Credit Default Swap, Daniel Kahneman / Amos Tversky, debt deflation, discounted cash flows, diversified portfolio, equity premium, estate planning, Eugene Fama: efficient market hypothesis, Fall of the Berlin Wall, family office, Fellow of the Royal Society, financial innovation, fixed income, Gordon Gekko, Henri Poincaré, high net worth, index fund, information asymmetry, interest rate swap, invention of the telegraph, James Hargreaves, James Watt: steam engine, joint-stock company, Kenneth Rogoff, labor-force participation, land tenure, London Interbank Offered Rate, Long Term Capital Management, loss aversion, Louis Bachelier, margin call, means of production, Menlo Park, merger arbitrage, money market fund, moral hazard, mortgage debt, Myron Scholes, negative equity, Network effects, new economy, Nick Leeson, Own Your Own Home, Paul Samuelson, pension reform, Ponzi scheme, price mechanism, principal–agent problem, profit maximization, quantitative easing, RAND corporation, random walk, Renaissance Technologies, Richard Thaler, risk tolerance, risk-adjusted returns, risk/return, Robert Shiller, Robert Shiller, Sand Hill Road, Sharpe ratio, short selling, Silicon Valley, South Sea Bubble, sovereign wealth fund, spinning jenny, statistical arbitrage, survivorship bias, technology bubble, The Wealth of Nations by Adam Smith, time value of money, too big to fail, transaction costs, underbanked, Vanguard fund, working poor, yield curve

Indeed, it is no surprise that managing a macro-oriented portfolio and having consistent success is More New Investment Forms 267 no easy task: the identiﬁcation of a string of exceptional shifts is what separates the one-hit wonders from the macro titans. Relative value funds can encapsulate several different strategies. Some are engaged in what has been termed pairs trading, or the purchase of one security that has been deemed “cheap” on a relative basis and the sale of another that seems correspondingly “expensive.” Relative value funds proﬁt when the prices of the pair of securities readjust. Some funds use statistical arbitrage, often examining the behavior of the time series and making judgments as to relative value based on historical valuations. Others are more fundamentally oriented, believing that one well-positioned ﬁrm will outperform a competitor. The other common strategy employed by relative value funds is seeking value across the capital structure of a publicly traded ﬁrm. By way of example, a relative value fund may believe a publicly traded company will experience severe distress in the next six months.

…

See Standard & Poor’s 500 speculation: art, stamps, coins, and wine, 283; in derivatives, 221; excesses, 197; impacts of, 232; value and, 4–5 spinning jenny, 71 split-strike conversion, 151–52 sponsor, 286–87 Stabilizing an Unstable Economy (Minsky), 214 Stagecoach Corporate Stock Fund, 284–85 Standard & Poor’s 500 (S&P 500), 187, 228, 285, 305–6, 309 Stanford, Allen, 153–56 Stanford, Leland, 155 Stanford Financial Group, 154 Starbucks, 277 State Street Corporation, 299 State Street Global Advisors, 299 State Street Investment Trust, 141 statistical arbitrage, 267 steam engine, 71 steamships, 90 Stefanadis, Chris, 94 sterling, 65 stock company, 134 stock exchanges: national or international, 94; new, 96; regional, 94–95 stock market: dislocations, 205; in England, 86–87; in Paris, 85 stock ownership: age and, 93–94; direct and indirect, 91, 93; gender and, 93–94; regulations prohibiting too much, 123; study of, 96; in United States, 90–94, 97 stock ticker, 89–90; network, 95 stones (horoi), 27, 60 Strong, Benjamin, 200–203, 206, 226 strong-form efficiency, 249 Studebaker-Packard Corporation, 111 sub hasta (public auction), 50 subprime, 39 subprime-mortgage lending, 223 Suetonius, 59 sugar consumption, in England, 75, 77 Sumerian city-states, 15–16 supply curve, 229 Supreme Court, 108 survivorship bias, 252 swap spread, 266 Swensen, David, 296, 328 SWFs.

**
Money Mavericks: Confessions of a Hedge Fund Manager
** by
Lars Kroijer

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activist fund / activist shareholder / activist investor, Bernie Madoff, capital asset pricing model, corporate raider, diversification, diversified portfolio, family office, fixed income, forensic accounting, Gordon Gekko, hiring and firing, implied volatility, index fund, intangible asset, Jeff Bezos, Just-in-time delivery, Long Term Capital Management, merger arbitrage, new economy, Ponzi scheme, risk-adjusted returns, risk/return, shareholder value, Silicon Valley, six sigma, statistical arbitrage, Vanguard fund, zero-coupon bond

The general feedback from the guys (there were virtually no women in the crowd) was similar: their jobs were not very structured, there was little hierarchy, skill was enthusiastically acknowledged by superiors and lack of it punished mercilessly. The job was entrepreneurial, in that you were encouraged to pursue what you thought were interesting angles, and if you were good the money was great. It was also clear that the type of work varied quite a bit from fund to fund. While the fixed-income or statistical arbitrage funds could be very mathematical in nature, the work at some of the long or short funds largely resembled that of more traditional stock-picking. Joining the clan I eventually joined a value fund in New York called SC Fundamental. During the interview process, the firm’s founder, Peter Collery, had thoroughly impressed me and I still consider him one of the smartest people I have ever met.

**
The greatest trade ever: the behind-the-scenes story of how John Paulson defied Wall Street and made financial history
** by
Gregory Zuckerman

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1960s counterculture, banking crisis, collapse of Lehman Brothers, collateralized debt obligation, Credit Default Swap, credit default swaps / collateralized debt obligations, financial innovation, fixed income, index fund, Isaac Newton, Long Term Capital Management, margin call, Mark Zuckerberg, Menlo Park, merger arbitrage, mortgage debt, mortgage tax deduction, Ponzi scheme, Renaissance Technologies, rent control, Robert Shiller, Robert Shiller, rolodex, short selling, Silicon Valley, statistical arbitrage, Steve Ballmer, Steve Wozniak, technology bubble, zero-sum game

Pellegrini moved out of their Gracie Square home to an apartment in Westchester, receiving $300,000 from DeWoody in a divorce settlement, a pretax payout that he figured might have to last him through retirement. Being financially successful was at the top of Pellegrini’'s life goals, right up there with having a happy family life. He had failed miserably at both. “"I was forty-five and had zero net worth,”" Pellegrini recalls. “"And from my perspective, I had no prospects.”" Pellegrini’'s bright ideas kept coming, though. He developed a new method to use “"statistical arbitrage”" to trade stocks, though he couldn’'t make much money with it. A stint at Tricadia Capital, a hedge fund founded by Michaelcheck’'s Mariner Investment Group, Inc., gave Pellegrini an education in the world of securitized debt and credit-default swaps (CDS), which the firm was heavily involved in. But Pellegrini didn’'t make many friends at Tricadia when he suggested that the firm find ways to short collateralized-debt obligations, even as others at the firm were buying and creating versions of these debts.

**
Traders at Work: How the World's Most Successful Traders Make Their Living in the Markets
** by
Tim Bourquin,
Nicholas Mango

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algorithmic trading, automated trading system, backtesting, commodity trading advisor, Credit Default Swap, Elliott wave, fixed income, Long Term Capital Management, paper trading, pattern recognition, prediction markets, risk tolerance, Small Order Execution System, statistical arbitrage, The Wisdom of Crowds, transaction costs, zero-sum game

When I found pairs trading in equities, however, that was an eye-opening event for me. It gave me the opportunity to be a little more patient with my trades, because I was focused on relative value, not on whether KLA-Tencor [KLAC] stock was going to go up today or Novellus Systems stock was going to go down. Instead, I could trade the relative value in between the KLAC–Novellus pair. Those early days of equity statistical arbitrage pairs trading has really defined my career up to this point. Bourquin: What made agricultural pairs trading more attractive to you than just straight equity pairs trading? Hemminger: I enjoy the research process and looking through data, which are skills that I have continued to build upon as my career in the financial markets has developed and I have gained more confidence. I would say that process really started in 2006.

**
The Clash of the Cultures
** by
John C. Bogle

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asset allocation, collateralized debt obligation, commoditize, corporate governance, corporate social responsibility, Credit Default Swap, credit default swaps / collateralized debt obligations, diversification, diversified portfolio, estate planning, Eugene Fama: efficient market hypothesis, financial innovation, financial intermediation, fixed income, Flash crash, Hyman Minsky, income inequality, index fund, interest rate swap, invention of the wheel, market bubble, market clearing, money market fund, mortgage debt, new economy, Occupy movement, passive investing, Paul Samuelson, Ponzi scheme, principal–agent problem, profit motive, random walk, rent-seeking, risk tolerance, risk-adjusted returns, Robert Shiller, Robert Shiller, shareholder value, short selling, South Sea Bubble, statistical arbitrage, survivorship bias, The Wealth of Nations by Adam Smith, transaction costs, Vanguard fund, William of Occam, zero-sum game

The high demand for the services of HFTs comes not only from “punters”—sheer gamblers who thrive (or hope to thrive) by betting against the bookmakers—but from other diverse sources, as well. These traders may range from longer-term investors who value the liquidity and efficiency of HFTs to hedge fund managers who act with great speed based on perceived stock mispricing that may last only momentarily. This aspect of “price discovery,” namely statistical arbitrage that often relies on complex algorithms, clearly enhances market efficiency, which is definitely a goal of short-term trading, but also benefits investors with a long-term focus. Yes, HFTs add to the efficiency of stock market prices, and have slashed unit trading costs to almost unimaginably low levels. But these gains often come at the expense of deliberate investors, and expose the market to the risks of inside manipulation by traders with knowledge of future order flows.

**
Nerds on Wall Street: Math, Machines and Wired Markets
** by
David J. Leinweber

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AI winter, algorithmic trading, asset allocation, banking crisis, barriers to entry, Big bang: deregulation of the City of London, butterfly effect, buttonwood tree, buy low sell high, capital asset pricing model, citizen journalism, collateralized debt obligation, corporate governance, Craig Reynolds: boids flock, creative destruction, credit crunch, Credit Default Swap, credit default swaps / collateralized debt obligations, Danny Hillis, demand response, disintermediation, distributed generation, diversification, diversified portfolio, Emanuel Derman, en.wikipedia.org, experimental economics, financial innovation, fixed income, Gordon Gekko, implied volatility, index arbitrage, index fund, information retrieval, intangible asset, Internet Archive, John Nash: game theory, Kenneth Arrow, Khan Academy, load shedding, Long Term Capital Management, Machine translation of "The spirit is willing, but the flesh is weak." to Russian and back, market fragmentation, market microstructure, Mars Rover, Metcalfe’s law, moral hazard, mutually assured destruction, Myron Scholes, natural language processing, negative equity, Network effects, optical character recognition, paper trading, passive investing, pez dispenser, phenotype, prediction markets, quantitative hedge fund, quantitative trading / quantitative ﬁnance, QWERTY keyboard, RAND corporation, random walk, Ray Kurzweil, Renaissance Technologies, Richard Stallman, risk tolerance, risk-adjusted returns, risk/return, Robert Metcalfe, Ronald Reagan, Rubik’s Cube, semantic web, Sharpe ratio, short selling, Silicon Valley, Small Order Execution System, smart grid, smart meter, social web, South Sea Bubble, statistical arbitrage, statistical model, Steve Jobs, Steven Levy, Tacoma Narrows Bridge, the scientific method, The Wisdom of Crowds, time value of money, too big to fail, transaction costs, Turing machine, Upton Sinclair, value at risk, Vernor Vinge, yield curve, Yogi Berra, your tax dollars at work

Shaw & Company in 1988 with $28 million (it now has current assets exceeding $30 billion).7 What is likely Shaw’s last publication on trading dealt with the mechanics of interfacing Unix systems with the Gr eatest Hits of Computation in Finance 41 current generation of electronic trading systems. He apparently realized that, despite his instincts as a former academic, some things are more valuable unpublished. Subsequent in-house developments made D.E. Shaw a leader (reportedly) in electronic market making, statistical arbitrage, and other fast electronic trading strategies. David Whitcomb, a market microstructure economist at Rutgers University and coauthor of a 1988 book on electronic trading strategies,8 faced the same sort of skepticism selling his ideas to Wall Street. Finding no institutional backing, he joined forces with a computer scientist colleague to found Automated Trading Desk (ATD) in the proverbial garage in Charleston, South Carolina.

**
The Black Box Society: The Secret Algorithms That Control Money and Information
** by
Frank Pasquale

Amazon: amazon.com — amazon.co.uk — amazon.de — amazon.fr

Affordable Care Act / Obamacare, algorithmic trading, Amazon Mechanical Turk, American Legislative Exchange Council, asset-backed security, Atul Gawande, bank run, barriers to entry, basic income, Berlin Wall, Bernie Madoff, Black Swan, bonus culture, Brian Krebs, call centre, Capital in the Twenty-First Century by Thomas Piketty, Chelsea Manning, Chuck Templeton: OpenTable, cloud computing, collateralized debt obligation, computerized markets, corporate governance, Credit Default Swap, credit default swaps / collateralized debt obligations, crowdsourcing, cryptocurrency, Debian, don't be evil, drone strike, Edward Snowden, en.wikipedia.org, Fall of the Berlin Wall, Filter Bubble, financial innovation, financial thriller, fixed income, Flash crash, full employment, Goldman Sachs: Vampire Squid, Google Earth, Hernando de Soto, High speed trading, hiring and firing, housing crisis, informal economy, information asymmetry, information retrieval, interest rate swap, Internet of things, invisible hand, Jaron Lanier, Jeff Bezos, job automation, Julian Assange, Kevin Kelly, knowledge worker, Kodak vs Instagram, kremlinology, late fees, London Interbank Offered Rate, London Whale, Marc Andreessen, Mark Zuckerberg, mobile money, moral hazard, new economy, Nicholas Carr, offshore financial centre, PageRank, pattern recognition, Philip Mirowski, precariat, profit maximization, profit motive, quantitative easing, race to the bottom, recommendation engine, regulatory arbitrage, risk-adjusted returns, Satyajit Das, search engine result page, shareholder value, Silicon Valley, Snapchat, Spread Networks laid a new fibre optics cable between New York and Chicago, statistical arbitrage, statistical model, Steven Levy, the scientific method, too big to fail, transaction costs, two-sided market, universal basic income, Upton Sinclair, value at risk, WikiLeaks, zero-sum game

This story opens Michael Lewis, Flash Boys (New York: W.W. Norton, 2014), 15. Economic sociologists have also studied Spread Networks. Donald Mackenzie et al., “Drilling Through the Allegheny Mountains: Liquidity, Materiality and High-Frequency Trading” ( Jan., 2012), at http://www.sps.ed .ac.uk /__data /assets/pdf_file/0003/78186/LiquidityResub8.pdf. 131. Ibid. A. D. Wissner- Gross and C. E. Freer, “Relativistic Statistical Arbitrage,” Physical Review E 056104-1 82 (2010): 1– 7. Available at http://www .alexwg.org/publications/PhysRevE _82-056104.pdf. 132. Keller, “Robocops,” 1468. NOTES TO PAGES 131–132 277 133. Ibid. 134. Ibid. 135. See Matt Prewitt, “High-Frequency Trading: Should Regulators Do More?,” Michigan Telecommunications and Technology Law Review 19 (2012): 148 (discussing “spoofi ng” and other deceptive HFT tactics). 136.

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The Everything Store: Jeff Bezos and the Age of Amazon
** by
Brad Stone

Amazon: amazon.com — amazon.co.uk — amazon.de — amazon.fr

3D printing, airport security, AltaVista, Amazon Mechanical Turk, Amazon Web Services, bank run, Bernie Madoff, big-box store, Black Swan, book scanning, Brewster Kahle, call centre, centre right, Chuck Templeton: OpenTable, Clayton Christensen, cloud computing, collapse of Lehman Brothers, crowdsourcing, cuban missile crisis, Danny Hillis, Douglas Hofstadter, Elon Musk, facts on the ground, game design, housing crisis, invention of movable type, inventory management, James Dyson, Jeff Bezos, John Markoff, Kevin Kelly, Kodak vs Instagram, late fees, loose coupling, low skilled workers, Maui Hawaii, Menlo Park, Network effects, new economy, optical character recognition, pets.com, Ponzi scheme, quantitative hedge fund, recommendation engine, Renaissance Technologies, RFID, Rodney Brooks, search inside the book, shareholder value, Silicon Valley, Silicon Valley startup, six sigma, skunkworks, Skype, statistical arbitrage, Steve Ballmer, Steve Jobs, Steven Levy, Stewart Brand, Thomas L Friedman, Tony Hsieh, Whole Earth Catalog, why are manhole covers round?, zero-sum game

Shaw tentatively accepted the job and then changed his mind, telling Hillis he wanted to do something more lucrative and could always return to the supercomputer field after he got wealthy. Hillis argued that even if Shaw did get rich—which seemed unlikely—he’d never return to computer science. (Shaw did, after he became a billionaire and passed on the day-to-day management of D. E. Shaw to others.) “I was spectacularly wrong on both counts,” Hillis says. Morgan Stanley finally pried Shaw loose from academia in 1986, adding him to a famed group working on statistical arbitrage software for the new wave of automated trading. But Shaw had an urge to set off on his own. He left Morgan Stanley in 1988, and with a $28 million seed investment from investor Donald Sussman, he set up shop over a Communist bookstore in Manhattan’s West Village. By design, D. E. Shaw would be a different kind of Wall Street firm. Shaw recruited not financiers but scientists and mathematicians—big brains with unusual backgrounds, lofty academic credentials, and more than a touch of social cluelessness.

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The Invisible Hands: Top Hedge Fund Traders on Bubbles, Crashes, and Real Money
** by
Steven Drobny

Amazon: amazon.com — amazon.co.uk — amazon.de — amazon.fr

Albert Einstein, Asian financial crisis, asset allocation, asset-backed security, backtesting, banking crisis, Bernie Madoff, Black Swan, Bretton Woods, BRICs, British Empire, business process, capital asset pricing model, capital controls, central bank independence, collateralized debt obligation, commoditize, Commodity Super-Cycle, commodity trading advisor, credit crunch, Credit Default Swap, credit default swaps / collateralized debt obligations, currency peg, debt deflation, diversification, diversified portfolio, equity premium, family office, fiat currency, fixed income, follow your passion, full employment, George Santayana, Hyman Minsky, implied volatility, index fund, inflation targeting, interest rate swap, inventory management, invisible hand, London Interbank Offered Rate, Long Term Capital Management, market bubble, market fundamentalism, market microstructure, moral hazard, Myron Scholes, North Sea oil, open economy, peak oil, pension reform, Ponzi scheme, prediction markets, price discovery process, price stability, private sector deleveraging, profit motive, purchasing power parity, quantitative easing, random walk, reserve currency, risk tolerance, risk-adjusted returns, risk/return, savings glut, selection bias, Sharpe ratio, short selling, sovereign wealth fund, special drawing rights, statistical arbitrage, stochastic volatility, survivorship bias, The Great Moderation, Thomas Bayes, time value of money, too big to fail, transaction costs, unbiased observer, value at risk, Vanguard fund, yield curve, zero-sum game

Well, traders have to be moneymakers—especially so after they are hired. After that I would look at their trading style, the instruments they have traded, and how that fits into what we already have. There are many issues involved with hiring traders, and different characteristics are required for different kinds of trading. A macro trader does not have the same characteristics as a relative value trader, a long/short equity trader, or a statistical arbitrage trader. You need to look at the characteristics that are appropriate for a given strategy. In addition to track record, how do you determine how much capital to allocate to your traders? It depends on the market they are trading—what the level of the market is and if there is an opportunity in that market. It depends how they have been doing over the past few years and also how long they have been with us.

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The Stack: On Software and Sovereignty
** by
Benjamin H. Bratton

Amazon: amazon.com — amazon.co.uk — amazon.de — amazon.fr

1960s counterculture, 3D printing, 4chan, Ada Lovelace, additive manufacturing, airport security, Alan Turing: On Computable Numbers, with an Application to the Entscheidungsproblem, algorithmic trading, Amazon Mechanical Turk, Amazon Web Services, augmented reality, autonomous vehicles, basic income, Benevolent Dictator For Life (BDFL), Berlin Wall, bioinformatics, bitcoin, blockchain, Buckminster Fuller, Burning Man, call centre, carbon footprint, carbon-based life, Cass Sunstein, Celebration, Florida, charter city, clean water, cloud computing, connected car, corporate governance, crowdsourcing, cryptocurrency, dark matter, David Graeber, deglobalization, dematerialisation, disintermediation, distributed generation, don't be evil, Douglas Engelbart, Douglas Engelbart, Edward Snowden, Elon Musk, en.wikipedia.org, Eratosthenes, ethereum blockchain, facts on the ground, Flash crash, Frank Gehry, Frederick Winslow Taylor, future of work, Georg Cantor, gig economy, global supply chain, Google Earth, Google Glasses, Guggenheim Bilbao, High speed trading, Hyperloop, illegal immigration, industrial robot, information retrieval, Intergovernmental Panel on Climate Change (IPCC), intermodal, Internet of things, invisible hand, Jacob Appelbaum, Jaron Lanier, John Markoff, Jony Ive, Julian Assange, Khan Academy, liberal capitalism, lifelogging, linked data, Mark Zuckerberg, market fundamentalism, Marshall McLuhan, Masdar, McMansion, means of production, megacity, megastructure, Menlo Park, Minecraft, Monroe Doctrine, Network effects, new economy, offshore financial centre, oil shale / tar sands, packet switching, PageRank, pattern recognition, peak oil, peer-to-peer, performance metric, personalized medicine, Peter Eisenman, Peter Thiel, phenotype, Philip Mirowski, Pierre-Simon Laplace, place-making, planetary scale, RAND corporation, recommendation engine, reserve currency, RFID, Robert Bork, Sand Hill Road, self-driving car, semantic web, sharing economy, Silicon Valley, Silicon Valley ideology, Slavoj Žižek, smart cities, smart grid, smart meter, social graph, software studies, South China Sea, sovereign wealth fund, special economic zone, spectrum auction, Startup school, statistical arbitrage, Steve Jobs, Steven Levy, Stewart Brand, Stuxnet, Superbowl ad, supply-chain management, supply-chain management software, TaskRabbit, the built environment, The Chicago School, the scientific method, Torches of Freedom, transaction costs, Turing complete, Turing machine, Turing test, universal basic income, urban planning, Vernor Vinge, Washington Consensus, web application, Westphalian system, WikiLeaks, working poor, Y Combinator

Hugh Tomlinson and Graham Burchell (New York: Columbia University Press, 1994), 214. 14. Chris C. Demchak and Peter J. Dombrowski, “Rise of a Cybered Westphalian Age: The Coming Age,” Strategic Studies Quarterly 5, no. 1 (2011): 31–62. 15. Stuart Elden, “Secure the Volume: Vertical Geopolitics and the Depth of Power,” Political Geography 34 (2013): 35–51. 16. A. Wissner-Gross and C. Freer, “Relativistic Statistical Arbitrage,” Physical Review E 82, no. 5 (2010). On this topic in relation to geodesign, see also Geoff Manaugh, “Islands and the Speed of Light,” March 2011. http://bldgblog.blogspot.com/2011/03/islands-at-speed-of-light.html. 17. Here I am departing from Catherine Malabou's use of the term plasticity, and toward the mutable future I refer more directly to the chemical qualities of what we commonly call “plastic.”