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.
+170.4%
Total Return
$27,041
Ending Value
+64.9%
CAGR
-54.6%
Max Drawdown
1.20
Sharpe
44%
Win Rate
9
Trades
90%
Time in Market
ATEX · SMA Crossover Long & Short turned $10,000 into $27,041 (+170.4%) vs buy & hold $19,615 (+96.1%) over 2024-09-16→2026-09-15 — it beat buy & hold by 74.3%, worst drawdown 55% (vs 57%) · 5 short trades.

Equity curve — $10,000 invested

501 trading days
+212%-54%■ strategy■ buy & hold

Recent trades

long & short round-trips
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