Equity Options

Are there systematic errors in market expectations about the future volatilities of individual stock prices? If so, what reliable strategy could a trader use to exploit these errors? In their August 2006 paper entitled “Option Returns and the Cross-Sectional Predictability of Implied Volatility”, Amit Goyal and Alessio Saretto examine the complete range of implied stock price volatilities for all U.S. equity options to devise an volatility forecasting model more efficient than that inherent in the market. They then test the model’s ability (out of sample) to identify outperforming options trading strategies that exploit this market inefficiency. Using daily data for all U.S. equity options over the period January 1996 to May 2005, they conclude that: Keep Reading

How do individuals really trade in equity options? Do they mostly just buy speculative calls and protective puts? In their May 2006 paper entitled “Option Market Activity”, Josef Lakonishok, Inmoo Lee, Neil Pearson and Allen Poteshman examine actual option trading behaviors of firm proprietary traders (most sophisticated), customers of full-service brokers (including hedge funds?) and customers of discount brokers (least sophisticated). Using a unique dataset with detailed purchase-write and open-close transaction information for each equity option series listed by the Chicago Board Options Exchange (CBOE) from 1990 through 2001, they conclude that: Keep Reading

Are value (growth) investors stolid conservatives (wild risk-takers)? If so, is there a way to trade on the difference in behavioral preferences? In their September 2006 paper entitled “Risk Aversion and Clientele Effects”, Douglas Blackburn, William Goetzmann and Andrey Ukhov compare the risk preferences of value and growth investors by examining: (1) option prices for pairs of value-growth indexes, and (2) funds flows for value and growth mutual funds. They further investigate whether any profitable options trading strategies devolve from the difference in risk preferences. Using recent data for five value-growth index pairs and for several value and growth mutual funds, they find that: Keep Reading

Does a willingness to pay more or less for options than indicated by recent actual levels of stock return volatility reflect the current level of investor/trader risk aversion? In other words, does the gap between option-implied and historical stock return volatilities provide a tradable measure of fearfulness? In the September 2006 draft of their paper entitled “Expected Stock Returns and Variance Risk Premia”, Tim Bollerslev, George Tauchen and Hao Zhou investigate the predictive power of the implied-historical volatility gap for future stock returns. Using monthly data for the S&P 500 index (VIX for implied volatility and a summation of five-minute squared returns for historical volatility) for the period 1990-2005, they find that: Keep Reading

In the January 2006 revision of their paper entitled “Is There Money to be Made Investing in Options? A Historical Perspective”, James Doran and Andy Fodor examine the return and risk of a variety of option strategies for a typical investor. Specifically, they assess whether any of 12 S&P 500 index options trading strategies as marginal investments within a larger index portfolio would have enhanced buy-and-hold returns over long periods. They chose the 12 strategies in accordance with the basic strategies outlined by the Chicago Board of Options Exchange. Where historical options price data is unavailable, they estimate plausible reconstructions and transaction costs. Using two long periods (1970-2004 and 1995-2004) and focusing on overall portfolio returns, they find that: Keep Reading