What is consistency rule?
A consistency rule caps the share a single day can represent in total profit. Set between 15 and 50 % depending on the firm, it most often blocks a withdrawal rather than failing a challenge.
It is the most frustrating rule in the industry, because it usually surfaces after the fact, when you request a withdrawal.
The calculation
The standard formula compares your best day’s gain to total accumulated profit. With a 40 % rule and a total profit of $5,000, no single day may have produced more than $2,000. If one has, the firm generally does not cancel the account: it requires you to keep trading until the ratio falls back below the threshold.
Some firms compare the best day not to realised profit but to the profit target. The difference matters: in that second version, a good day exceeding half the target mechanically raises the goal you have to reach.
Why it exists
The official argument is selection: a firm wants consistent traders, not gamblers whose performance rests on a single shot. The unofficial argument is economic: the rule delays withdrawals and increases time spent on the account, and therefore the probability that a risk incident occurs.
Who it penalises
It mainly hits approaches that concentrate results into few opportunities: swing trading on macro moves, event trading, low-frequency strategies with a high reward-to-risk ratio. A scalper producing steady gains almost never meets it.
If your method rests on a few decisive sessions a month, the absence of a consistency rule should weigh heavily in your choice of firm — more than a few points of profit split.
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Related terms
- Challenge A challenge is the paid evaluation a prop firm sells. The trader must reach a profit target without crossing the imposed loss limits, on a simulated account. Passing it gives access to a funded account.
- Funded account A funded account is the trading account a prop firm allocates once the evaluation is passed. The trader operates under continuing risk rules and keeps a share of the profits, without ever holding the nominal capital.
- Payout A payout is the actual transfer of a funded trader's gains. It follows a cycle specific to each firm, after a minimum period since the account was opened, and often above a floor amount.
- Profit target A profit target is the gain a trader must achieve to pass an evaluation phase. Expressed as a percentage of nominal capital, generally 6 to 10 % in the first phase, it is often halved in the second.