// Size every entry against a fixed-fraction risk rule. The Forge calculates. You sign.
Risk dollars first, units second. Your account times your risk percentage gives the dollars you're willing to lose on this play. Divide by the per-unit risk (price distance from entry to stop) and you have the position size in units. Multiply units by entry price for total notional.
risk_amount = account * (risk_pct / 100) risk_per_unit = |entry - stop| units = risk_amount / risk_per_unit notional = units * entry
Doesn't account for fees or slippage. Add a buffer in real life — the Forge cost ledger has the venue numbers.