Snapshots of The Deflated Sharpe Ratio: A Unified Framework for Search-Adjusted Performance Inference

Quickly apply original, key PMR-published papers with Snapshots—a short article companion that distills PMR research into compressed, digestible takeaways, so you can put the paper’s core ideas to work in your investment process—fast. This Snapshot article is based on research arguing that, because a strategy selected from a broad research search can look unusually strong by chance, the Deflated Sharpe Ratio (DSR) evaluates reported performance against what that search itself could have produced without skill.