Understanding Peer Momentum

Summary

The episode explores "peer momentum," the idea that a stock’s future returns can be better predicted by the recent performance of its connected firms—not just its own past returns. Research shows that using industry‑level peer momentum yields annualized return spreads of about 11% between top and bottom deciles, even after accounting for traditional momentum, indicating a distinct information source. The discussion highlights that richer definitions of peer networks—such as supplier‑customer links, technological similarity, analyst coverage, and especially refined biotech peer groups based on therapeutic focus—further enhance predictive power. Lionel Smoler‑Schatz of Verdad explains how these indirect spillovers can be incorporated into investment strategies to improve returns.