Risk Adjustment in Private Equity Returns

This article reviews empirical methods to assess risk and return in private equity. I discuss data and econometric issues for fund-level, deal-level, and publicly traded partnerships data. Risk-adjusted return estimates vary substantially by method, time period, and data source. The weight of evidence suggests that, relative to a similarly risky investment in the stock market, the average venture capital (VC) fund earned positive risk-adjusted returns before the turn of the millennium, but net-of-fee returns have been zero or even negative since. Average leveraged buyout (BO) investments have generally earned positive risk-adjusted returns both before and after fees, compared with a levered stock portfolio. Based on an expanded set of risk factors from the literature, VC resembles a small-growth investment, while BO loads mostly on value. I also discuss the empirical evidence on liquidity and idiosyncratic volatility risks.