AI backtester for stocks, options, options flow and dark pools
Type the strategy the way you would say it. An AI analyst writes the test, runs it on real market data in a sandbox, and shows the equity curve against SPY, every trade, the statistics and the code it ran.
Ai backtester questions
Can I backtest options strategies with real prices?
Yes. Every option trade fills at the real bid and ask at that moment, from March 2022 on, with $0.65 a contract in fees, and a contract held to expiry pays its intrinsic value. No option is priced from a model.
Can I backtest options flow?
Yes. Tradytics keeps every options flow order since March 31, 2025. Describe a rule like buying the call when someone sweeps more than $5M at the ask, and it is tested on that history with real option quotes.
Do I need to code to backtest a strategy?
No. You describe the strategy in plain English. The AI writes and runs the code, and shows it to you with every trade.
What data can I backtest on?
US stocks and ETFs since 2003, options quotes since March 2022, options flow since March 2025, dark pool prints since October 2024, and Kalshi and Polymarket markets.
How does it avoid lookahead bias?
A signal only uses what was known at the time: fundamentals from their filing date, flow and dark pool prints after they printed, and fills after the signal. Results are checked on the final stretch of the period, untouched while the rule was built.
Is the Tradytics backtester free?
Free accounts run 1 backtest a day. Plus runs 5 a day for $39 a month and Pro runs 25 for $69 a month.
- Stocks and ETFs: daily prices since 2003 and minute bars, split adjusted with dividends paid, and point-in-time fundamentals, so a test only uses what was known that day.
- Options at prices you could have traded: every fill is the real bid and ask at that moment (buy at the ask, sell at the bid, $0.65 a contract) from March 2022 on, held to a date or to expiry.
- Options flow: every order since March 31, 2025, with side, premium, sweeps and opening trades, to test following the big money.
- Dark pool block prints since October 2024, and Kalshi and Polymarket prediction markets as signals for stocks and options.
- Trading costs, buy and hold and an untouched final stretch of the period checked on every result, so a strategy that only worked in hindsight shows it.
- Every reply shows its work: the code that ran, each fill and round trip, return, Sharpe, drawdown and win rate.
- Free runs 1 backtest a day, Plus 5 and Pro 25.
Updated 2026-11-05 11:48 UTC