Backtest Playground
Walk-forward evaluation across patterns, symbols and cost assumptions — train on the past, measure only on out-of-sample bars, then stress the result with Monte Carlo resampling.
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Configure a strategy below and press Run Backtest to measure it.
Strategy builder
Universe
10 symbols: AAPL, MSFT, GOOGL, AMZN, NVDA, META… · hand-picked large caps, not the full index constituents
Range sets bars retrieved; walk-forward windows split within.
Patterns optionalUsing all 34 patterns
Advancedvs SPY · $0.005/sh · 5 bps · $10,000 · MC off
Block-resamples the trade sequence and injects slippage noise to stress-test outcomes — turning one equity curve into a distribution.