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Option Listing And Information Asymmetry, Jianfeng Hu May 2018

Option Listing And Information Asymmetry, Jianfeng Hu

Research Collection Lee Kong Chian School Of Business

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 option listing standards. The benefits are more prominent for stocks with active options trading and opaque stocks. The reduction of information risk is larger for good news than bad news, and the stock price response to earnings surprise weakens after listing. The results suggest that options improve the overall market information environment beyond substitutional effects to stock trading.


Essay On Asset Pricing, Fei Gao Jan 2018

Essay On Asset Pricing, Fei Gao

Dissertations and Theses Collection (Open Access)

We uncover a novel stock return predictor from the options market, the volume-weighted strike-spot price ratio (VWKS) across all traded option contracts. High (low) VWKS indicates that the mass of options volume on an underlying stock centers at the out-of-the-money region of call (put) options. Empirically, VWKS has positive and robust predictive ability for underlying returns after controlling for a long list of variables including known return predictors from the options market, stock illiquidity, and past stock returns, and has more persistent and stronger predictive power for stocks with higher information asymmetry and arbitrage costs. We also find that VWKS …