We analyze the effect of option trading on the return predictability of short interest. There is no difference in the return predictability of short-interest ratios between stocks with and without traded options. The predictability of the put-call open interest ratio (PCOIR) is weaker than that...

If the implied volatility is higher than the realized volatility, OTM call returns can be negative and decrease in strike prices/skewness, a return pattern also consistent with skewness preference. Empirically, we find the above return pattern is not driven by investors purchasing OTM calls, but...

There has been extensive literature on effects of short-sale constraints. A most widely study is Miller (1997) who argues that given the short-sale constraints, investors with bearish information cannot trade in the market unless they already hold the stocks. As a consequence, stock prices...

We provide a comprehensive comparison of equity short-selling activity and option market activity in predicting future returns. Three variables are constructed, namely the equity short interest ratio (SIR), put-call open interest ratio (PCOIR), and put-call buy volume ratio (PCBVR). The...

Hong Kong introduced the Closing Auction Session (CAS) to the HKEX securities market in 2016. Under the CAS, trading is extended by an extra 8-10 minutes after the daily trading session ends at 16:00 to determine the closing price for the day. Trading under the CAS is in the form of a single...

We investigate whether macroeconomics factors price Chinese stock returns. We find that GDP growth and momentum factor demand negative pricing premiums after controlling for market, value and size factors. The negative pricing of GDP growth is robust after controlling for momentum factor, the...