Recent work considers whether information is simultaneously reflected in both option and equity markets. We provide new evidence supporting Black's (Financ. Anal. J. 31:36–72, 1975) conjecture that information is first revealed in option markets. Specifically, changes in call and put...

This paper examines the information content in option prices and volatility surrounding analyst recommendation changes. The sample includes 7,549 recommendation changes of optionable stocks over the period January 1996 to December 2005. As expected, mean underlying asset returns are positive on...

Recent work has considered whether information is simultaneously reflected in both option and equity markets. We provide new evidence supporting Black's (1975) conjecture that information is first revealed in option markets. Specifically, changes in call and put open interest levels have...

We dissect the impact of information contained for future asset returns in the implied volatility skew. Future returns are linked to the discrepancy between call and put volatilities of at-the-money options and to the left side of the volatility skew, calculated as the difference between...

This study examined the impact on future asset returns of information contained in the implied volatility skew. Future returns are linked to the discrepancy between call and put volatilities of at-the-money options and to the left side of the volatility skew, calculated as the difference between...

While insurers manage underwriting risk with various methods including reinsurance, insurers increasingly manage asset risk with options, futures, and other derivatives. Previous research shows that buyers of portfolio insurance pay considerably for downside protection. We add to this literature...

Corporate-level fraudulent activity has instilled a state of concern and heightened awareness in investors, the media and employees alike as perceived sensitivity to illegal behavior continues to increase. With corporate giants such as Enron, Tyco and Health South being prime examples of this...

Prior literature shows that the implied volatility spread between call and put options is a bullish signal for future returns on the underlying stocks. A common interpretation is that a high call-put implied volatility spread indicates favorable private information revealed by informed option...

This paper examines the historical performance of 12 portfolios that include Samp;P 100/500 index options. Each option portfolio is formed using options with different maturities and moneyness, while incorporating bid-ask spreads, transaction costs, and margin requirements. Raw and risk-adjusted...

Executive stock options (ESOs) have been extensively examined. An unexplored but highly relevant issue is how the options are valued and what information this valuation provides to the market. Understanding ESOs valuation is difficult because there is no set method. Using a model such as...