The use of short sales by mutual funds has increased significantly over the last decade. In this paper, we provide a first look at short selling by mutual funds, a phenomenon not examined by prior research. The mutual funds that use short sales do so frequently and in significant amounts,...

This paper shows that intensity of high-frequency trading (HFT) in stocks held by mutual funds is negatively related to fund performance. This negative relation can largely be explained by the illiquidity premium: HFT-intensive stocks provide lower returns because the majority of these stocks...