Using a unique data set that contains the complete ownership structure of the German stock market, we study the momentum and contrarian trading of different investor groups. Foreign investors and financial institutions, and especially mutual funds, are momentum traders, whereas private...

We distinguish exogenous liquidity, which corresponds to the variability of bid-ask spreads for usual-sized transactions, from endogenous liquidity, which we interpret as the impact of liquidity on market prices when liquidating larger positions. Endogenous liquidity measures the risk that the...