Validación y overfitting
What is walk-forward analysis?
Walk-forward analysis repeatedly optimizes a strategy on one window of history and tests it on the next, unseen window, rolling forward through time — optimize on 2021–2022, test on 2023 Q1; slide; repeat. The stitched-together test segments form an out-of-sample equity curve that no parameter choice ever saw.
It answers the question a single backtest can't: does the strategy keep working when it must be re-tuned on the past and traded on the future, the way it would be in real life? Consistent walk-forward segments are among the strongest evidence a retail strategy can have.
La respuesta más rápida es una prueba
La mayoría de las preguntas "¿funciona X?" se responden empíricamente en un minuto — con datos reales, control out-of-sample, gratis.
Backtestea una estrategia gratisMás sobre este tema
Contenido educativo, no asesoramiento financiero. Las cifras de backtest e históricas describen solo periodos pasados; el rendimiento pasado no garantiza resultados futuros.