Strategy backtester

Test any of 20 strategies on any ticker — long, short, or both — against free historical prices, and compare to buy & hold. Set trading cost and a stop-loss for a realistic run. Historical simulation only (dividends not modeled); past performance is not indicative of future results, and this is analysis, not advice.

Fast MASlow MAFastSlowSignalRSI lenBuy<Sell>PeriodStd×Lookbackno parametersMorning momentum: breakout → pullback holds → confirmation. Fixed rules, no parameters; real 0DTE option prices. Ignores the cost/stop/range fields below. Best on SPY/QQQ/IWM.
Direction lets you trade short too. Cost = bps per trade; stop-loss exits after that % adverse move (0 = off). "Compare all" runs every strategy.
-12.8%
Total Return
$8,723
Ending Value
-10.3%
CAGR
-64.8%
Max Drawdown
0.11
Sharpe
33%
Win Rate
6
Trades
84%
Time in Market
CHYM · SMA Crossover Long & Short turned $10,000 into $8,723 (-12.8%) vs buy & hold $8,946 (-10.5%) over 2025-06-12→2026-09-15 — it trailed buy & hold by 2.2%, worst drawdown 65% (vs 56%) · 3 short trades.

Equity curve — $10,000 invested

316 trading days
+54%-55%■ strategy■ buy & hold

Recent trades

long & short round-trips
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