When the Opposite Side Works Better

StatsEdgeTrading

A listener asked: “What do you do when your strategy suddenly stops working—and the opposite side starts working better?”

If that happens, it’s not the market. It’s your process.

Michael and Dave break down the red flags of overfitting, short backtest windows, and why a strategy flipping from long to short is almost always a signal that something’s broken under the hood—not a new edge. It’s a good problem to have, though: it means you’re close to something real. But to get there, you need to rebuild your process from the base idea, with a longer testing window and a more rigorous rule set.

This episode is your blueprint for avoiding the “Castanza trade,” stopping emergency strategy pivots, and getting back to building robust systems you can trust with size.

If you’re serious about building data-backed systems you can size up with confidence, get everything you need—backtests, alerts, and strategy research—at www.statsedgetrading.com.