This study adopts a unique dataset that includes the complete history of transactions in the Taiwan options market to investigate the misreaction patterns for marketwise observations and the transactions of four different categories of investors in the high-frequency framework. Using the results...

While numerous prior studies report that call–put implied volatility spreads positively predict future stock returns, recent literature shows that the predictive relation is negative for future call option returns. We investigate whether and, if so, how the predictive relation for options...

We investigate the ways in which the net buying pressure of options and the volatility of the underlying asset affect the trading demand for speculation and hedging in TAIEX options. We place particular focus on an examination of whether any changes were discernible in the volatility effects...