Your best trading idea is probably wrong. QuantJo exists to tell you that before the market charges you for the lesson.

Tell Jo your setup in plain English: "Long the NIFTY when the 20-hour SMA crosses above the 50. Flip short when it crosses back." Jo writes it as real code you can read and keep, then runs it through a backtest that refuses to flatter you. Signals fill at the next bar's open, so nothing peeks at the future. Stops execute intrabar, on the touch. Parameter search validates on data the strategy has never seen, and overfit ideas come back RED with the reason.

Every idea ends in a verdict: GREEN, CAUTIOUS, or RED. RED means don't trade it. A backtest that can't say no is a sales pitch.

Survivors go live on paper capital against real market bars, with an alert on every fill.

Data: Indian market data via Zerodha, global markets via Databento, US equities and fundamentals via Massive.

Free plan: 200K AI tokens, 30 backtest minutes, no card. Bring one idea you actually believe in.

Not financial advice. Not a broker.


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