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Is The Synthetic Stock Price Really Lower Than Actual Price?, Jianfeng Hu
Is The Synthetic Stock Price Really Lower Than Actual Price?, Jianfeng Hu
Research Collection Lee Kong Chian School Of Business
Conventional wisdom suggests synthetic stock prices are lower than actual prices due to short‐sale constraints and voting premiums. This study finds that such underpricing of the synthetic midquote disappears if arbitrageurs face security borrowing costs. The synthetic spread predominantly contains the actual spread. Synthetic stock overpricing is as common as underpricing but the former is more persistent and more profitable. The difference between synthetic and actual quotes is significantly affected by options market makers' hedging costs and investors' demand for leverage.
What Do Short Sellers Know?, Ekkehart Boehmer, Charles M. Jones, Juan (Julie) Wu, Xiaoyan Zhang
What Do Short Sellers Know?, Ekkehart Boehmer, Charles M. Jones, Juan (Julie) Wu, Xiaoyan Zhang
Research Collection Lee Kong Chian School Of Business
Using NYSE short-sale order data, we investigate whether short sellers' informational advantage is related to firm earnings and analyst-related events. With a novel decomposition method, we find that while these fundamental event days constitute only 12% of sample days, they account for over 24% of the overall underperformance of heavily shorted stocks. Importantly, short sellers use both public news and private information to anticipate news regarding earnings and analysts. Shorting's predictive ability remains significant after controlling for information in analyst actions and displays no reversal patterns, indicating that short sellers know more than analysts, and the nature of their information …