Most traders who fail a prop firm evaluation don't fail because they missed the profit target. They fail because of a rule many don't understand until they've already burned two or three accounts: the trailing drawdown — the "floor that chases you".
In this guide we explain it with real numbers, compare how the most popular futures and forex firms apply it, and show you how to check — with your own trade history — whether your trading would have violated the rule before paying for another evaluation.
Every prop firm gives you a maximum loss limit (max drawdown). The difference is where it's measured from:
A $150K account with a $4,500 trailing drawdown (Topstep-style numbers):
| Moment | Equity | Floor (trailing) | Real cushion |
|---|---|---|---|
| Day 1 — start | $150,000 | $145,500 | $4,500 |
| Day 3 — good stretch | $154,000 | $149,500 | $4,500 |
| Day 4 — pullback | $149,900 | $149,500 | $400 |
Look at the last row: the trader is barely $100 below the starting balance — a loss that would be irrelevant in a static account (they'd still have $4,400 of cushion). But because the floor rose to $149,500 when equity touched $154,000, one bad $400 trade now burns the account. Winning fast and giving it back is the most common way to die in an evaluation with a trailing drawdown.
The detail almost nobody reads: at most futures firms the floor stops rising once it reaches the starting balance (or start + $100). In other words: once you've built enough profit, the trailing "freezes" and behaves like a static drawdown. Surviving the first few weeks is the hard part.
| Firm | Type | Detail |
|---|---|---|
| Topstep (Combine $150K) | EOD trailing | $4,500; freezes at the target. 50% consistency rule. |
| Apex ($150K) | Intraday trailing | $5,000; the most aggressive: rises with every new high tick, not at the close. |
| Tradeify (Growth $150K) | EOD trailing | $5,000; "soft" daily loss that stops your day but doesn't disqualify you. |
| MyFundedFutures (Pro $150K) | EOD trailing | $4,500; no minimum days. 50% consistency rule. |
| FTMO ($100K, phase 1) | Static | Fixed 10% ($90K floor) + 5% daily loss. |
| FundingPips ($100K, phase 1) | Static | Fixed 10% + 5% daily loss. |
Intraday vs. end-of-day (EOD) trailing also matters: with intraday trailing (Apex), an equity peak inside a candle already raises your floor, even if you close the trade lower. With EOD, only the daily close counts. The same trading can pass one and violate the other.
Heads up: prop firms change their rules constantly. Always verify the current amounts on each firm's official website before paying for an evaluation.
Maximum loss in a single calendar day. Several futures firms removed it (Topstep in 2024, Take Profit Trader in 2025), but in forex it remains standard (typically 5%). Important: all the day's losses add up — two −$600 trades with a $1,000 limit already disqualify you.
Your best day can't exceed a certain percentage of total profit (30–50% depending on the firm). It's designed against the "one lucky day and cash out" play. If your target is $9,000 and your best day made $6,000, with a 50% consistency rule you don't pass until the rest of your days accumulate enough to dilute it.
Between 0 and 5 days depending on the firm. The least dangerous one, but it stops those who want to pass the evaluation in a single session.
Here's the blind spot for most traders: they look at their total P&L and aggregate max drawdown and conclude "I'd pass". But the trailing rule isn't evaluated on aggregates: it's evaluated trade by trade over the equity curve. A winning streak followed by a normal pullback can violate the trailing rule even when your totals look impeccable.
The correct check is: take your real history, rebuild the equity curve trade by trade, and simulate each firm's trailing floor over that curve — including the freeze at the starting balance, the daily loss per calendar day and the consistency rule.
The PromptDesk Pro prop firm simulator imports your NinjaTrader history (CSV) and evaluates your real trading against the current rules of the most popular futures and forex firms: trade-by-trade trailing, daily loss, consistency and minimum days. It tells you exactly which firms you'd pass, which you'd violate and by how much. And your data never leaves your browser: the calculation is 100% local.
Try the simulator →This content is educational and does not constitute financial advice. Trading involves risk of loss. The prop firm rules mentioned are as of July 2026 and may change; always verify the current conditions on each firm's official website.