Walk-Forward Optimization: Why 90% of Backtests Fail
Your backtest showed a 2.4 Sharpe and a smooth equity curve climbing left to right. Then you went live and the strategy bled out in three weeks. You’re not unlucky. You’re overfit. More than 90% of academic trading strategies fail with real capital despite posting double-digit backtested returns. The fix isn’t a better indicator. It’s […]







