Most traders meet the consistency rule for the first time when they try to withdraw. The target was reached, the drawdown was never touched, the account looks finished — and the payout is declined. Nothing went wrong with the trading. The profit simply arrived in the wrong shape.
What it actually measures
A consistency rule caps how much of your total profit is allowed to come from your single best day. It is one division:
Best day ÷ total profit must be at or under the firm’s cap. A best day of $900 against $3,000 of total profit is 30%. If the cap is 30%, that is inside it. If the cap is 20%, it is not.
Caps commonly sit somewhere between 20% and 50%. The lower the number, the more evenly your profit has to be spread.
Why firms ask for it
A firm funding you is buying a repeatable edge, not a lottery ticket. An account that made its entire target on one session has demonstrated one good session; it has not demonstrated a method. From the firm’s side the rule is a filter against the trader who takes enormous size once, gets it right, and would have blown the account if it had gone the other way.
That is worth understanding rather than resenting, because it tells you what the rule is really asking: show me this again, smaller.
A worked example
A $50,000 evaluation with a $3,000 profit target and a 30% consistency cap. Two traders both finish at exactly $3,000.
| Trader | Their days | Best day | Total | Best ÷ total | Result |
|---|---|---|---|---|---|
| A | 400 · 350 · 500 · 300 · 450 · 600 · 400 | $600 | $3,000 | 20% | Inside the cap |
| B | 1,500 · 200 · 400 · 150 · 300 · 250 · 200 | $1,500 | $3,000 | 50% | Outside the cap |
Same target, same drawdown, same number of trading days. Trader B is not in trouble for losing money or breaking a risk limit. B is in trouble because half the profit arrived on a Tuesday.
The part that catches everyone
Trader B now needs to fix the ratio. The instinct is to go and make more money, and the instinct is roughly right — but only if the money arrives in the right size.
To get a $1,500 best day inside a 30% cap, total profit has to reach $1,500 ÷ 0.30 = $5,000. B needs another $2,000, made in days no larger than $1,500.
Suppose B goes out and makes $2,000 in a single session. Total profit is now $5,000 — the figure required a moment ago — but the best day is now $2,000, and 2,000 ÷ 5,000 is 40%. Still outside the cap, and the bar has moved: B now needs $6,667 in total.
A big day raises the top of the fraction as well as the bottom. A consistency problem is only ever solved by smaller days.
This is the single most useful thing to know about the rule, and it is entirely counter-intuitive. Every other constraint on a funded account rewards a good day. This one punishes it.
Which side of the line it applies to
Firms differ, and the difference matters:
- Evaluation only. The rule governs passing. Once funded, the shape of your profit stops being measured.
- Funded only. The evaluation is a pure target, and consistency appears for the first time when you ask to be paid — which is exactly when nobody is expecting it.
- Both, often at different percentages, with the funded figure usually the stricter of the two.
Check which applies to your account before you need to know, not at the moment you request a withdrawal.
When it is measured
Usually at the point of a payout request rather than continuously. That has one comfort and one danger. The comfort: breaching consistency does not normally close an account the way a drawdown breach does — the payout is refused, not the account. The danger: because nothing warns you as it drifts, a trader can spend a month building a ratio they cannot withdraw against without ever seeing a number move.
How to stay inside it without thinking about it
- Know your cap, and which phase it applies to. Two numbers, written down once.
- Watch the ratio, not the target. The useful figure is best day divided by total profit, checked as you go. The target takes care of itself.
- Size down after an outsized session. A very good day has quietly raised the total profit you now need. Trading the same size afterwards is what turns one good day into a month of chasing.
- Do not bank a monster day near the end of an evaluation. There is no room left to dilute it.
- Count commissions. A gross figure flatters both halves of the fraction unevenly — fees fall on every day, so they shrink the small days proportionally more.
Or let Choptick watch the ratio
Choptick measures each account against its own firm’s rules — consistency, drawdown, daily loss and winning days — and shows how much more total profit a breach needs before it clears.
See ChoptickFigures in the examples are invented and illustrative. Written for traders working out how their own account is measured. Prop firms set their own percentages and change them, and the terms you agreed to are the ones that apply — always check your firm’s own dashboard and agreement. Nothing here is financial advice.