The growth in defined contribution savings and low rates of private annuitization mean that retirees must estimate how best to allocate savings over an uncertain lifetime. The primary risk of depleting a stock of assets in order to generate income is that the retiree will outlive their savings – also known as shortfall risk. Estimating the risk of running out of money involves projecting idiosyncratic longevity risk and portfolio returns. For portfolio returns, projections are centered around their historical averages. This ignores current asset valuations, which may be a valuable predictor of near-term returns