Badshah, Ihsan Ullah; Koerniadi, Hardjo; Kolari, James W. - In: Journal of risk and financial management : JRFM 12 (2019) 4/179, pp. 1-11
research on this hypothesis to open-market share repurchases. Empirical tests showed that the implied volatility spread was not … implied volatility spread and subsequent stock return volatility around open-market share repurchase events. We concluded that … option traders have private information on the volatility of stock returns and superior information processing ability that …
