Stax Labs
Test Your Trading Ideas on Real History | Stax
If you already have views, Stax lets you prove them. Build a thesis, test it on real history, see every trade, and run what holds up.

What users get
- Test on
- 5 years of history
- Universe
- 5,000+ stocks
- See
- Every trade
The job it solves
Have your own ideas? Test any thesis on years of real market history, see the trades, and run the ones that hold up.
Built for the actual investing workflow
Stax is strongest when a visitor can move from learning to building to testing without switching tools or losing the original idea.
Prove a thesis before you risk real cash on it.
Compare versions and see which one holds up.
Inspect the full trade history, not just one number.
Run the plans that earned it.
How it works
A practical path from an idea to evidence, then from evidence to practice.
- 1
Build a thesis from stocks, a theme, or a screen.
- 2
Stax tests it on real history and finds the best version.
- 3
Dig into the trades, the risk, and the drawdowns.
- 4
Run it, or keep refining.
Deep trade-level detail, not just a headline return.
Finding the best version and testing are one engine.
Programmatic access for power users through the API.
Learn the concepts behind the tool
Start with a template
Questions people ask
Can I test my own strategy ideas?
Yes. Build any thesis and test it on years of real history, with the full trade log to inspect.
Can I access it from code?
Yes. The Stax API and MCP let you run backtests and screens from your own scripts or an AI agent.
Ready to use test your trading ideas on real history | stax?
Start with a clear idea, test the rules, and keep the risk visible before the decision gets emotional.