Classifying mandatory 13F stock-holding filings by manager type reveals that hedge fund strategies are mostly contrarian, while mutual fund strategies are largely trend following. The only institutional performers — the 2/3 of hedge fund managers that are contrarian — earn alpha of 2.4% per...

Classifying mandatory 13F stockholding filings by manager type reveals that hedge fund strategies are mostly contrarian, while mutual fund strategies are largely trend following. The only institutional performers---the 2/3 of hedge fund managers that are contrarian---earn alpha of 2.4% per year....

We study the relation between order imbalance and past returns and firm characteristics and test a number of hypothesis including the disposition effect, momentum and contrarian trading, tax-loss selling and flight-to-quality hypothesis. These hypotheses make predictions about investors' buy or...

We study the relation between order imbalance and past returns and firm characteristics and test a number of hypothesis including the disposition effect, momentum and contrarian trading, tax-loss selling and flight-to-quality hypothesis. These hypotheses make predictions about investors buy or...

We use information from over two million trading strategies that are randomly generated using real data, and from strategies that survive the publication process to infer the statistical properties of the set of strategies that could have been studied by researchers. Using this set, we compute...

Prices of the highly liquid S&P500 exchange traded fund (SPY) and the E-mini future (ES) respond to macroeconomic announcement surprises within five milliseconds, with trading intensity increasing over a hundred-fold following the news release. However, profits from trading quickly are...