Consistency rule

No single day may carry too much of your profit

A cap on how much of your total profit any one day may represent. Under a 30% rule, your best day must not exceed 30% of total profit. The point is to rule out passing on a single lucky trade and to reward steady trading instead. Some firms apply it only during the evaluation, others also at payout time, and some not at all — the payout-stage version matters most, since it is one of the leading causes of delayed or rejected withdrawals.