We investigate stock returns, market quality, and options market activity around the flash crash of May 6, 2010. Abnormal returns are negative on the day of and the day after the flash crash for stocks that had trades that executed during the crash subsequently cancelled by either Nasdaq or NYSE...

Prior research posits that traders with short-lived information favor lit exchanges over dark pools due to execution certainty. This paper focuses on the relation between informed trading based on firm fundamentals and dark pool volume because the preferred venue for traders with longer-lived...