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.
+12.6%
Total Return
$11,265
Ending Value
+6.2%
CAGR
-58.5%
Max Drawdown
0.36
Sharpe
43%
Win Rate
7
Trades
90%
Time in Market
ATI · SMA Crossover Long & Short turned $10,000 into $11,265 (+12.6%) vs buy & hold $28,464 (+184.6%) over 2024-09-25→2026-09-24 — it trailed buy & hold by 172.0%, worst drawdown 58% (vs 37%) · 4 short trades.

Equity curve — $10,000 invested

500 trading days
+249%-54%■ strategy■ buy & hold

Recent trades

long & short round-trips
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