October 10, 2011 - Buybacks-Secondaries
Past research indicates that returns for stocks associated with share buybacks (secondary offerings) tend to be abnormally high (low) in subsequent years, suggesting that management successfully times the market and investors respond slowly to the timing signal. Do these findings persist in recent data? In their June 2011 paper entitled “The Persistence of Long-Run Abnormal… Keep Reading
October 7, 2011 - Technical Trading, Volatility Effects
Can the forward-looking aspect of the S&P 500 Volatility Index (VIX) amplify technical analysis? In their September 2011 paper entitled “Using VIX Data to Enhance Technical Trading Signals”, James Kozyra and Camillo Lento apply nine simple technical trading rules (three each moving average crossovers, filters and trading range breakouts) to VIX to generate daily trading signals for the… Keep Reading
October 5, 2011 - Commodity Futures, Fundamental Valuation
Do oil price variations reliably affect returns for U.S. industry-level stock portfolios? In the June 2011 draft of their paper entitled “U.S. Industry-Level Returns and Oil Prices”, Qinbin Fan and Mohammad Jahan-Parvar apply several tests to investigate how oil price changes impact stock returns for 49 U.S. industries. They test economic significance by: (1) using a 60-month rolling historical window… Keep Reading
October 4, 2011 - Calendar Effects, Technical Trading
Do U.S. stock market returns during the first and last hours of normal trading days reliably indicate what comes next? To investigate, we analyze average SPDR S&P 500 (SPY) returns during 9:30-10:30, 9:30-15:00, 9:30-16:00 and 15:00-16:00 for normal trading days during 2007 (bullish year) and 2008 (bearish year). Using a sample of SPY one-minute prices spanning 2007-2008, we find… Keep Reading
October 3, 2011 - Calendar Effects
Does the U.S. stock market exhibit predictable return and volatility patterns during the trading day? To investigate, we analyze one-minute prices for SPDR S&P 500 (SPY) over two recent years. Specifically, we calculate average cumulative return, average returns for 15-minute intervals and average standard deviation of one-minute returns during 15-minute intervals over the trading day during… Keep Reading
September 30, 2011 - Momentum Investing
Has the stock market adapted to widespread investor efforts to exploit intermediate-term return momentum? In their paper entitled “Momentum Loses Its Momentum: The Implication on Market Efficiency”, Debarati Bhattacharya, Raman Kumar and Gokhan Sonaer evaluate the robustness of momentum returns in the U.S. stock market over time via consideration of three subperiods: 1965-1989 (SP1), 1990-1998… Keep Reading
September 29, 2011 - Individual Investing
Do distinct neural processes for rewards and punishments result in distinct variation in learning about financial gains and financial losses? If so, is such variation material to wealth-building? In their September 2011 paper entitled “Gain and Loss Learning Differentially Contribute to Life Financial Outcomes”, Brian Knutson, Gregory Samanez-Larkin and Camelia Kuhnen examine whether individual differences in… Keep Reading
September 28, 2011 - Sentiment Indicators
Does news lead the stock market? In his September 2011 paper entitled “Reuters Sentiment and Stock Returns”, Matthias Uhl tests whether aggregate Thomson Reuters news sentiment (feeling, opinion or emotion evoked while reading a Reuters news article) predicts stock market returns at a monthly frequency. He aggregates monthly sentiment by summing individual articles coded as evoking positive… Keep Reading
September 27, 2011 - Animal Spirits, Fundamental Valuation
Does the semantic tone of an earnings announcement, as measured independently of the level of earnings surprise, affect stock price reaction. In his September 2011 paper entitled “Short-term Reactions to News Announcements”, Michal Dzielinski investigates the effect of the tone (positive, neutral or negative) of the words in earnings announcements and other company news on stock prices from… Keep Reading
September 26, 2011 - Equity Options
Does a simple strategy of iteratively selling covered calls (buy-write) on the Russell 2000 Index beat buying and holding the index? In their September 2011 paper entitled “15 Years of the Russell 2000 Buy‐Write”, Nikunj Kapadia and Edward Szado evaluate returns on ten alternative buy‐write strategies for the Russell 2000 Index. Specifically, they consider one-month and two-month maturities and five levels of approximate moneyness: at-the-money (ATM); 2% and 5%… Keep Reading