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 consider which readily observable characteristics of individual stocks (e.g., option implied volatility, accounting data, analyst data) may be used to forecast subsequent extreme price movements. We are the first to explicitly consider the predictive influence of option implied volatility in...

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...

The literature has considered the market's response to the stocks of commercial airline carriers after their flights are involved in accidents. The aircraft manufacturer stock price, in the wake of a crash, has received considerably less attention in the literature. We analyze this response over...

Investors and analysts classify firms to conduct valuations or to evaluate performance. The industry groupings usually rely on SIC, NAIC, GICS, or Fama-French classifications. Our purpose is to form groups of companies based on the structure of their financial statements. Using cluster analysis,...

Past works have documented the predictive power of short-term stock return momentum and option volume ratios for future stock returns. We find option volume ratios have greater power to predict future returns when evidence prices are out of equilibrium exists, proxied for by increases in implied...