Parameters
ATR stop and max hold are off at 0. Slippage is charged on every fill.
Run a backtest to see its trades.
API key
Data comes from Twelve Data. The shared demo key
only serves a few symbols — a free key at twelvedata.com covers the rest
(800 requests/day, far more than this app needs).
Stored only in this browser, never in the app's source. Anyone with access to this phone can read it, so use a free key, not a paid one.
Cached data
What this is
A backtesting instrument, not an advisor. It reports what a rule would have done on past prices. Past behaviour is not a forecast, results exclude taxes and assume you'd have followed the rule mechanically through every drawdown, and the more combinations you try the more the best one owes to luck. Nothing here is financial advice.