We show that when only a few investors contribute a substantial portion of a fund's equity, the probability of large liquidity-driven fund outflows increases because investors' idiosyncratic liquidity shocks are not diversified away. Using confidential regulatory filings, we find the five...

We show that when only a few investors contribute a substantial portion of a fund's equity, the probability of large liquidity-driven fund outflows increases because investors' idiosyncratic liquidity shocks are not diversified away. Using confidential regulatory filings, we find the five...

Hedge fund gross U.S. Treasury (UST) exposures doubled from 2018 to February 2020 to $2.4 trillion, primarily driven by relative value arbitrage trading and supported by corresponding increases in repo borrowing. In March 2020, amid unprecedented UST market turmoil, the average UST trading hedge...

We show that when only a few investors own a substantial portion of a hedge fund's net asset value, flow volatility increases because investors' exogenous, idiosyncratic liquidity shocks are not diversified away. Using confidential regulatory filings, we confirm that high investor concentration...

This paper provides evidence of the impact of hedge funds on asset markets. We construct a simple measure of the aggregate illiquidity of hedge fund portfolios, based on the cross-sectional average first order autocorrelation coefficient of hedge fund returns, and show that it has strong and...