March 2, 2012 - Equity Options, Volatility Effects
…evidence suggests that investors may be able to gain an edge from the power of changes in implied volatilities to predict returns for individual stocks, and the power of stock returns to predict future changes in implied volatilities.
February 29, 2012 - Volatility Effects
Generally, when stocks go up (down), iPath S&P 500 VIX Short Term Futures (VXX) goes down (up). A reader asked what happens after stocks and VXX move in the same direction. Is this unusual behavior a useful signal? Using daily returns of SPDR S&P 500 (SPY) and VXX from the inception of the latter on 1/30/09 through 2/17/12… Keep Reading
February 27, 2012 - Mutual/Hedge Funds
Have researchers unfairly treated actively managed mutual funds by using non-investable benchmarks? In their February 2012 paper entitled “Another Look at the Performance of Actively Managed Equity Mutual Funds”, David Blitz and Joop Huij evaluate the performance of actively managed equity mutual funds against a set of passively managed market, small capitalization, growth and value index funds… Keep Reading
February 24, 2012 - Buybacks-Secondaries, Fundamental Valuation, Momentum Investing, Size Effect, Value Premium
Do widely acknowledged U.S. equity market anomalies exist in other stock markets? If so, why? In his November 2011 paper entitled “Equity Anomalies Around the World”, Steve Fan investigates whether a number of equity market anomalies found among U.S. stocks (asset growth, book-to-market ratio, investment-to-assets ratio, six-month momentum with skip-month, net stock issuance, size and… Keep Reading
February 23, 2012 - Strategic Allocation
How can an investor decide whether a new strategy or new asset class (more generally, a stream of returns), is better than those currently in a portfolio? In their February 2012 paper entitled “The Sharpe Ratio Indifference Curve”, David Bailey and Marcos Lopez de Prado introduce a process for assessing addition of a new strategy (return… Keep Reading
February 21, 2012 - Big Ideas, Strategic Allocation
Some experts use the mean-variance analysis of Modern Portfolio Theory (MPT), which penalizes large upside volatility, to measure portfolio efficiency. Others use Second-order Stochastic Dominance (SSD) analysis, purer mathematically than MPT but open to unrealistic investor behavior. Is there a better way? In the February 2012 version of his paper entitled “The Passive Stock Market Portfolio is Highly… Keep Reading
February 17, 2012 - Individual Investing, Sentiment Indicators
How overconfident are individual investors, and how does overconfidence affect their investing practices? In his November 2011 paper entitled “Financial Overconfidence Over Time | Foresight, Hindsight, and Insight of Investors”, Christoph Merkle examines relationships between the return/risk expectations of affluent, self-directed private investors and their trading activity, diversification and risk taking. To frame the relationships, he considers… Keep Reading
February 16, 2012 - Equity Options, Volatility Effects
Are option traders market leaders, such that information gleaned from options trading anticipates equity returns? In the December 2011 draft of their paper entitled “Exploiting Option Information in the Equity Market”, Guido Baltussen, Bart Van der Grient, Wilma De Groot, Weili Zhou and Erik Hennink examine whether information publicly available from the option market exploitably predicts… Keep Reading
February 14, 2012 - Equity Premium, Strategic Allocation
What is the best way to include the least developed (frontier) stock markets for portfolio diversification? In his December 2011 paper entitled “Frontier Markets: Punching Below their Weight? A Risk Parity Perspective on Asset Allocation”, Jorge Chan-Lau compares the diversification effects of frontier markets within a world equity portfolio based on risk parity and market capitalization… Keep Reading
February 13, 2012 - Momentum Investing
It is arguable that many stock momentum strategy tests derive more from logical/programming simplicity than common portfolio management practices. Does momentum work for portfolios of U.S. stocks when melded with the latter? In the January 2012 update of his paper entitled “Relative Strength and Portfolio Management”, John Lewis tests individual stock momentum in the context of real-world… Keep Reading