Open source
Would it have worked?
Describe an investment strategy in plain English. An agent writes it, backtests it against history, and shows you the curve. Refine it by chatting.
How it works
- 01
Describe it
“Short every stock Jim Cramer recommends, $10,000 start, 2016 to 2025.” That’s the whole input.
- 02
The agent builds it
Codex writes the strategy code, fetches historical prices, and runs the backtest — you watch the steps stream by.
- 03
See the curve, refine it
One chart: green if it worked, red if it didn’t. Chat to tweak rules, or change the dates and run again.
Every idea keeps its history
Each strategy lives in its own session — the code, the chat, the results. Close the app, restart the server, come back next week; everything is exactly where you left it.
- Strategies persist across restarts
- Change the period, run again
- Light and dark, follows your system
An agent does the tedious part
No notebooks, no data wrangling. The agent writes the strategy, fetches prices, and runs the backtest while you watch it think. Don’t like the result? Just tell it what to change.
Historical data only. Nothing is traded.