Trade replay software

Sigmatic

Trading replay software that shows what the engine actually saw

Sigmatic’s replay tooling is built around recorded signals and stored market data. That makes it possible to inspect how a posture would have traded, compare it against the benchmark posture, and generate a deterministic review packet before changing the live logic.

Open the appBack home
Recorded, not imaginedThe replay path works from recorded signals and stored bars, not from hindsight annotations added after the fact.
Benchmark comparisonPractice Trader and operator replay let you compare the current posture against the benchmark posture instead of judging one run in isolation.
Reviewable outputEach replay can produce a deterministic review packet with what worked, what hurt, and which code or signal changes are worth testing next.
Next stepCreate a free account and open the dashboard to see live plans, Practice Trader, and performance tracking.

Frequently asked questions

What is trading replay software?

It lets you re-run a signal engine against historical price data to see how it would have decided in the moment. Unlike backtesting, replay uses the actual signals as they were recorded — no hindsight, no after-the-fact annotation.

How is replay different from backtesting?

Backtesting computes hypothetical signals from historical data. Replay uses the actual signals the engine produced when it was running live. That removes look-ahead bias and shows you exactly what would have shown up on the dashboard at decision time.

Is trading replay software free?

Sigmatic's Friend Beta is free. Replay is included alongside live signals, alerts, and the Practice Trader simulator. Pricing TBD.

Can I replay my own trades?

Practice Trader is the user-facing replay surface. You pick a date and a strategy, and Sigmatic re-runs the recorded signals from that day with the strategy you selected. The output is a side-by-side P&L comparison.

What can I do with the replay output?

Compare your strategy to the benchmark posture, surface trades that hit specific exit conditions, identify signal categories that consistently underperform, and decide whether a code change is worth shipping.

Is replay deterministic?

Yes. Given the same recorded signals and stored bars, replay produces byte-identical output every run. That's how the operator review packet stays comparable across signal-logic changes.

What data does replay use?

Recorded signals from signal_history (the engine's actual decisions at each minute) plus one-minute bars from intraday_bars. Both are stored in Sigmatic's research database; no external data fetch at replay time.

Sigmatic provides informational software for trade planning, replay, and review. It does not execute trades, route orders, or hold custody of customer assets.

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