What Is a Prop Firm Consistency Rule?

A consistency rule limits how much of your total profit can come from your single best trading day. Firms use it to stop traders passing an evaluation or qualifying for a payout with one oversized trade.

Example

With a 40% rule, if your best day made $1,600, your total profit needs to reach $4,000 before you qualify, because $1,600 must be no more than 40% of the total.

How firms differ

Percentages commonly range from 30% to 50%, and firms differ on whether they use net profit, winning days only or the profit target. Some apply it only during the evaluation, others only to payouts.

Check your numbers with the consistency rule calculator. Related: daily loss limit, prop firm trading journal. See the trading glossary.