When2Buy · Option POD3

0DTE Iron Condor Real-Price Backtest

Diagnostic backtest using historical Alpaca option bars for SPY + QQQ 0DTE iron condors. This page is intentionally blunt: the current real-price backtest is not launch-ready; it exposes sizing / payoff-model risk that synthetic tests hid.

Generated 2026-05-13 03:27 UTCPeriod 2024-02-01 → 2026-05-11Real option bars, no synthetic fallback
Full trades
1,119
Full win rate
85.7%
Full total P&L
-$11.61M
Full Sharpe
-0.62
OOS trades
874
OOS win rate
84.7%
OOS total P&L
-$9.82M
OOS max drawdown
-$17.11M
Bottom line: High win rate does not compensate for tail losses in this real-price replay. The strategy should stay paper-only until payoff scaling, settlement logic, event filters, and live order fill assumptions are reworked and re-tested.

Equity curve

Equity curve

Monthly P&L

Monthly P&L

Original backtest figure

Original generated backtest chart

What was tested

  • Underlying universe: SPY + QQQ
  • Structure: 0DTE iron condor
  • Pricing source: Alpaca historical option bars
  • Entry/exit: conservative bid/ask real-price replay
  • Fallbacks: no synthetic option-price fallback for missing data
  • Transformer unavailable in this environment; run used HMM/calendar path only, with HMM dependency missing so regimes collapsed to bull-only.

Next fixes before production

  • Normalize P&L by real defined risk / contract count.
  • Add final expiry settlement reconciliation.
  • Restore HMM + transformer dependencies for regime filtering.
  • Add mega-cap earnings / NVDA spillover filter.
  • Re-run OOS after correcting payoff scaling.

Walk-forward folds

FoldPeriodTradesWin rateP&L
F12024-08-01 → 2024-09-308481.0%-$2.90M
F22024-10-01 → 2024-11-298689.5%$2.00M
F32024-12-02 → 2025-01-317987.3%-$1.01M
F42025-02-03 → 2025-03-318071.2%-$3.94M
F52025-04-01 → 2025-05-308470.2%-$5.57M
F62025-06-02 → 2025-07-318397.6%$1.92M
F72025-08-01 → 2025-09-308295.1%$1.90M
F82025-10-01 → 2025-11-288186.4%-$2.03M
F92025-12-01 → 2026-01-307892.3%$1.50M
F102026-02-02 → 2026-03-318175.3%-$2.35M
F112026-04-01 → 2026-05-115685.7%$649K
Artifacts: full trades CSV · walk-forward trades CSV