We examine daily short-selling activity and prices around reverse stock splits. Using a difference-in-difference approach with a matched sample of reverse splitting and non-reverse splitting stocks, we show that short selling increases in stocks that reverse split, relative to those that do not....

We examine the information content of retail order flow relative to dark institutional and lit markets. We use multiple sources of retail order identification and account for the fact that market opacity affects order routing choices of both institutions and the brokers who sell retail orders....

We evaluate the information structure of US markets after the implementation of the SEC tick pilot program. We find significant changes in the information structure of the market conditioned on the market fee structure. Maker-taker market volume flow increases in informational efficiency while...

We study the levels of lit and dark fragmentation in IPOs. Using a sample of 451 IPOs, we find that measures of dark and lit fragmentation are higher in underpriced issues. We further test the claim that IPO price uncertainty is not fully resolved at the offering and that this ex-post...