We document a novel channel through which coordinated trading exerts externalities on financial markets. We study the impact of a financial advisory firm that recommends frequent reallocations between equity and bond funds to Chilean pension investors. The recommendations generate large and...

Exiting studies document that institutional herding has a stabilizing effect on stock prices, as stock returns over one- to three-quarter horizons are positively correlated with herding. The literature also shows that short-term institutions are better informed than long-term institutions....

Recent research shows that small trade imbalances are negatively associated with future stock returns. I find that this negative association only exists when stocks have initially been mispriced. In addition, mispricing occurs before the sentimental trading of small investors. In stocks with...

We re-examined the seasonal pattern in the excess returns of highly visible American firms. In contrast to the seasonality for risky, less visible firms, we found that highly visible stocks display return seasonality that shows the opposite trend. Fund managers are prone to gamesmanship, putting...

Using detailed mutual fund holdings in the US market, we estimate active mutual fund managers’ loss aversion as a function of both funds’ past performance and asset allocations. We document a substantial variation in loss aversion over time. We further find managers' loss aversion is higher...

This paper investigates the sensitivity of the demand for safe government debt to currency unhedged and hedged excess returns in a sample of US mutual funds. We find evidence of active rebalancing towards government bonds that offer relatively higher returns on an unhedged basis, in particular...

I provide evidence that fund managers who overweight firms with the most differentiated products ('monopolies') exhibit a superior risk-adjusted performance. This is consistent with information advantages due to a better understanding of qualitative information on a firm's competitive...

We exploit the merger between BlackRock and Barclays Global Investors to study how changes in expected ownership concentration affect the investment behavior of funds and the cross-section of stocks worldwide. We find that funds with open-end structures and a large exposure to commonly-held...

Since insider transactions are implemented through personal accounts, the NYSE classifies these trades as retail transactions. Indeed, imbalances of retail trading and insider trading move in lockstep and predict stock returns in the cross-section. A high-minus-low strategy in retail trading...

We find that aggregate net equity fund flows are strongly negatively correlated with changes in expected future stock market volatility as measured by the VIX. Implying that investor purchase decisions are primarily driven by returns and sale decisions by risk perceptions, we further find that...