A consistency rule calculator checks whether your single best trading day makes up too large a share of your total profit, compares that share with your firm’s cap, and shows the total profit you need for your current best day to fit within the rule.
What each input means
- Best day profit: the largest profit you made in one trading day during the period the rule covers. Use the figure for the whole day, not for your largest single trade.
- Total profit: your net profit over the same period. Losing days reduce this number, and a smaller total raises your best day’s share.
- Consistency rule: the maximum share your firm allows for one day, as a percentage (for example 15%, 30% or 40%).
How to read the result
Best day share is your consistency score: best day profit ÷ total profit × 100.
Status shows Pass when the share is at or below the rule and Fail when it is above.
Min. total to pass reverses the formula: best day profit ÷ rule. It is the smallest total profit at which your current best day stops breaking the rule.
A hypothetical failing case: your best day is $1,500, your total profit is $4,000 and the rule is 30%. The share is 37.5%, so the account fails the check. The minimum total is $1,500 ÷ 0.30 = $5,000, which means you need $1,000 more in net profit. The same $1,500 best day under a 15% rule needs a $10,000 total.
The extra profit has to come from days that each earn less than your current best day. If a later day beats $1,500, it becomes the new best day and you need to rerun the calculation with the higher figure. Losing days push the required total further away.
Assumptions behind the formula
The tool measures your best day against total profit earned. Some firms instead use the account’s profit target as a fixed denominator, so the cap limits how much one day may contribute toward the target. Check which denominator your firm uses before you rely on the status. To test a target-based rule, enter the profit target as the total profit.
It also assumes a simple percentage cap over one period, with all inputs in the same currency.
What the calculator leaves out
Firms write their consistency rules differently, and the tool does not model:
- Which phase the rule applies to: the evaluation, the funded account, payout requests, or several of these.
- How a trading day is defined: the cutoff time, and whether open positions count toward that day.
- Realized or floating profit: whether unrealized P&L is included.
- What a breach triggers: a failed account, a longer evaluation, or a delayed payout.
- Other consistency checks: some firms also check lot size or risk per trade.
Read the rulebook for your specific program, since terms can differ between account types at the same firm.
FAQ
How do I plan a large target day without breaking the rule?
Work backward: multiply the total profit you expect by the rule percentage to get your largest allowed day. A hypothetical $6,000 total under a 30% rule allows a best day of up to $1,800.
Does hitting the profit target override the consistency rule?
Not where a firm enforces the rule. If your best-day share is above the cap, reaching the target alone may not be enough to pass or to withdraw a payout.