Motivated by the growing literature on options as non-redundant assets, we investigate how option trading impacts underlying stock prices in the cross section controlling for stock market activities. We find both option trades and quotes are able to predict future stock price movement but stock...

After executing option orders, options market makers turn to the stock market to hedge away the underlying stock exposure. As a result, the stock exposure imbalance in option transactions translates into an imbalance in stock transactions. This paper decomposes the total stock order imbalance...

Option listing increases informed and uninformed trading by 12.4% and 23.9%, respectively, in the US between 2001 and 2010, hence reducing relative information risk. We establish the causal effects using control stocks with similar propensities of listing and a quasi-natural experiment using...

Underlying each stock trades hundreds of options at different strike prices and maturities. The order flow from these option transactions reveals important information about the underlying stock price movement and its volatility variation. How to aggregate the trade information of different...

Underlying each stock trades hundreds of options at different strike prices and maturities. The order flows from these option transactions reveal important information about the underlying stock price. How to aggregate the trade information of different option contracts underlying the same stock...