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Journal Article
Deactivating Active Share
January 6, 2016
The authors investigate Active Share, a measure meant to determine the level of active management in investment portfolios, and find it wanting.
Journal Article
The Disposition Effect and the Under-Reaction to News
August 1, 2006
Mounting evidence challenges the traditional view that securities are rationally priced to reflect publicly available information.
Journal Article
The Devil in HML's Details
June 1, 2013
This paper challenges the standard method for measuring “value” used in academic work on factor pricing.
Working Paper
Embedded Leverage
November 1, 2012
Embedded leverage—the amount of market exposure per unit of committed capital—has become an important feature of financial instruments. We study embedded leverage in equity options, index options and ETFs, and how it affects the required returns.
Working Paper
The Earnings Announcement Premium and Trading Volume
May 1, 2007
We measure and provide explanation for the earnings announcement premium, when stock prices rise around scheduled earnings announcement dates. We show that the premium is large and strongly related to the surge in volume around announcement dates.
Journal Article
Betting Against Beta
January 1, 2014
A basic premise of the capital asset pricing model (CAPM) is that all agents invest in the portfolio with the highest Sharpe ratio, or expected excess return per unit of risk, and leverage or de-leverage this portfolio to suit their risk preferences. However, many investors — such as individuals, pension funds and mutual funds — are constrained in the leverage that they can take, and therefore overweight risky securities instead.
White Paper
Understanding Defensive Equity
July 1, 2012
This paper analyzes the intuition behind defensive equity. We then analyze the empirical evidence, construction and performance of defensive equity portfolios, and discuss the possible explanations for its historical outperformance.
Journal Article
Fact, Fiction and Value Investing
November 5, 2015
Value investing has been a part of the investment lexicon for at least the better part of a century, yet confusion about it remains.
White Paper
A New Core Equity Paradigm
March 1, 2013
Combining successful investing styles to magnify their effects represents a new paradigm in active equity-portfolio management. Core Equities integrates value, momentum and profitability styles to offer a more persistent, systematic approach.
Journal Article
Buffett's Alpha
November 1, 2013
[Winner of the CFA Institute's 2018 Graham and Dodd Award] What is the secret to Warren Buffett's success? We seek the answer via a thorough empirical analysis in light of some the latest research on the drivers of returns.