Consistency rule calculator: does your best day break the rule?
By Alexander Burnett (editor) Last updated
How we got this
How: The calculator runs in your browser on the days you enter; firm presets are each firm’s own published consistency limit, quoted and linked to the page we read it on. How we checkHow we make moneyCorrections
Most firms cap your best day as a share of total profit. Enter your days and see where you stand.
- Best day vs total profit
- Most you can make tomorrow
- 15 firm limits, quoted
Turn on JavaScript to run the calculator. The worked example below shows the results.
Worked example: the same 8 days under two firms' rules
- Trading days8
- Total net profit$3,040
- Best day$1,150
Best day share of total37.83%$1,150 ÷ $3,040
- Topstep: withinUp to $2,026.67 tomorrow stays within. A loss over $165 tips it over.
- The Trading Pit (futures): overNeeds $2,710 more, no day above $1,150: about 5 average winning days. No single day fixes it.
Consistency limits by firm
| Firm | Account | Limit | Stage | The firm's words | Source |
|---|---|---|---|---|---|
| Alpha Futures | Zero account | 40% | Applies before a payout | Zero Account must also adhere to a 40% Consistency Rule | help.alpha-futures.com |
| Aqua Futures | Flex challenge | 50% | Applies to the evaluation | 50% (challenge only) | aquafunded.com |
| DayTraders.com | Evaluation | 50% | Applies to the evaluation | 50% / 30% EVAL / PRO | daytraders.com |
| DayTraders.com | PRO | 30% | Applies on the funded account | 50% / 30% EVAL / PRO | daytraders.com |
| FundedNext Futures | Flex challenge | 40% | Applies to the evaluation | Consistency Rule 40% | fundednext.com |
| Leeloo Trading | Performance Account | 30% | Applies on the funded account | should not exceed 30% of the net profit | leelootrading.com |
| Lucid Trading | LucidFlex evaluation | 50% | Applies to the evaluation | Consistency Percentage of 50% or less | support.lucidtrading.com |
| MyFundedFutures | Evaluation | 50% | Applies to the evaluation | Consistency 50% (Eval Only) | myfundedfutures.com |
| Phidias | Fundamental and Premium funded | 30% | Applies on the funded account | 30% max/day | phidiaspropfirm.com |
| The Trading Pit (futures) | Instant | 20% | Applies on the funded account | must not exceed 20% | thetradingpit.com |
| Top One Futures | Evaluation | 40% | Applies to the evaluation | Consistency on Eval 40% | toponefutures.com |
| Topstep | Express Funded (consistency path) | 40% | Applies before a payout | cannot exceed 40% of your total net profit | topstep.com |
| TradeDay | Evaluation | 30% | Applies to the evaluation | Consistency 30% | tradeday.com |
| Tradeify | Select evaluation | 40% | Applies to the evaluation | Pass Your Evaluation With 40% Consistency | tradeify.co |
| UProfit | Evaluation | 50% | Applies to the evaluation | 50% CONSISTENCY | uprofit.com |
| OneUp Trader | Funded | 80% (other days) | Different rule | Traders must have 3 other best trading days' net profits total summed up to equal 80% or more of the largest day's net profit. | oneuptrader.com |
- Your inputs stay in your browser
- Firm presets: the firm's own figures, read
- A calculator, not advice
How it works
- The rulebest day ÷ total net profit ≤ the limit. Total counts every day, losing days included.
- Extra profit neededbest day ÷ limit − total. Example: $1,150 ÷ 0.2 − $3,040 = $2,710.
- Days to fix itextra needed ÷ your average winning day, rounded up (judged: real days vary).
Tomorrow's range (b best day, T total, p limit as a decimal)
- Low end, Lb ÷ p − T. A smaller day leaves your best day too big a share.
- High end, Up × T ÷ (1 − p). A bigger day becomes a new best that breaks the rule.
- VerdictTomorrow passes between L and U. If L is above U, no single day fixes it. Within today: U is the most you can make, −L the biggest loss.
Edge cases
- Total at $0 or belowThe rule can't be met yet: there is no profit to take a share of.
- One dayThat day is 100% of your profit.
- OneUp TraderYour next 3 best days must add up to 80% of your largest. Missing days count as $0 (our reading).
Limits. Some firms count by session, include commissions, reset after each payout, or measure against the profit target. Check your firm's terms.
Measured and judged. Firm limits are measured (dated, linked). Every ratio, amount and day count is our arithmetic (judged). The example days are made up.