Residual Momentum

Definition

Residual momentum ranks stocks on their cumulative residual return over the standard 12-1 formation window after broad factor effects have been removed. The representative implementation estimates a rolling factor model first, then scores each stock on the residual return path that remains.

Higher values indicate stronger idiosyncratic performance after controlling for common systematic drivers, while lower values indicate weaker stock-specific trend behavior.

The idea is that conventional momentum mixes true stock-level continuation with broad factor drift. Residual momentum tries to keep the informative part of momentum while muting the factor bets that can make raw momentum more fragile.

Inside the finance research stack, the representative implementation sorts the Russell 1000 cross-section on residual momentum and compares the strongest names against the weakest names in a market-neutral spread.