Despite the introduction of sophisticated stock market indices, investors often trade portfolios of the flawed indices to change their exposure to the market. In this study, we show that these transactions cause significant mispricing in individual stocks, especially during periods of...

We examine to what extent institutional frictions such as short-sale constraints deter entry into informational arbitrage ex ante and reduce informational efficiency ex post. We focus on small arbitrageurs who target hard-to-short companies with correspondingly high potential for overvaluation....

We document the existence of a strategy designed to circumvent limits to arbitrage. Faced with short-sale constraints and noise trader risk, small arbitrageurs publicly reveal their information to induce the target's shareholders (the longs) to sell, thereby accelerating price discovery. Using...

This study sheds new light on the cross-sectional effects of inflation, which have substantial implications for stock valuation. I use financial statement analysis to examine systematic stock-valuation effects of aggregate price-level changes on individual companies, focusing on the implications...

We provide novel evidence supporting the notion that arbitrageurs can contribute to return comovement via ETF arbitrage. Using a large sample of U.S. equity ETF holdings, we document the link between measures of ETF activity and return comovement at both the fund and the stock levels, after...

Estimates of mispricing, such as deviations from no-arbitrage relations, strongly comove across five financial markets. One common component---the arbitrage gap---explains the majority of variability in mispricing estimates for futures, Treasury securities, foreign exchange, and options....

Fund trades and prices vary systematically with the quarterly reporting cycle. Funds are more likely to complete the building of a position at quarter-end, which is when most funds report positions to investors, and begin building new positions afterwards. While some of the observed shift in...

We investigate how the interaction of entries and exits of informed institutional investors with market anomaly signals affects strategy performance. The long legs of anomalies earn more positive alphas following entries, while the short legs earn more negative alphas following exits. The...

We link a seemingly biased trading behavior to equilibrium asset prices. U.S. equity mutual fund managers tend to sell both their big winners and big losers. This selling pressure pushes down current prices and leads to higher future returns; aggregating across funds, we nd that securities for...