What Is a Trailing Drawdown?
A trailing drawdown is a maximum loss limit that moves up behind an account's highest balance and never moves back down. A static drawdown stays fixed below the starting balance, so the same trades can leave a trailing account close to failing while a static one still has most of its room.
A drawdown measures how far an account has fallen from its high. A prop firm turns that measurement into a rule: fall this far and the account closes. Whether the “high” in that rule is fixed or moving is the single biggest difference between two evaluations that otherwise look alike.
How it works
A static drawdown is measured from the start. A $50,000 account with a $2,500 limit fails at $47,500, on the first day and on the fortieth. Profit made along the way is pure room.
A trailing drawdown is measured from the best balance so far. The floor sits $2,500 below the highest balance the account has reached, and it moves up whenever that high does. It never moves down. Profit made along the way is room only until it is given back.
Two firms, read on 25 Sep 2026, show both kinds side by side. FTMO’s trading objectives set a static 10% maximum loss on the 2-Step challenge and an end-of-day trailing 10% on the 1-Step, which FTMO says “can only increase, but never decrease.” Topstep’s Maximum Loss Limit trails the end-of-day balance and locks permanently once it reaches the starting balance.
Three settings that change the rule
What it follows. End-of-day versions move only on the closing balance. Intraday versions follow the best open equity during the session, so a winning trade that reverses before the close still lifts the floor.
What it is checked against. Topstep checks realized and unrealized profit and loss in real time, and FTMO’s daily limit is measured on equity including open positions. A floor set at the close can still be touched at any tick.
Whether it stops. A lock at the starting balance caps the trail. Without one, the floor keeps climbing for as long as the account makes new highs.
A worked example
Take a hypothetical $50,000 account with a $2,500 limit, trailing on end-of-day closes. Five days close at $51,000, $52,200, $51,400, $50,300 and $49,900.
The floor starts at $47,500. After the $51,000 close it trails to $48,500. After the $52,200 close it trails to $49,700. The next three closes are all lower, so it stays at $49,700.
After day five the account is $100 below where it started — $50,000 less $49,900 — and $200 from failing: $49,900 less $49,700. Under a static floor the same balance sits $2,400 above $47,500.
Nothing on the week was reckless. The best day was +$1,200 and the worst −$1,100. The account lost $100 in total. The trailing rule turned an ordinary give-back into a position with almost no room.
Intraday versus end-of-day
Now suppose day two traded as high as $52,800 before closing at $52,200. An end-of-day trail ignores that high; the floor is $52,200 less $2,500, which is $49,700.
An intraday trail follows it. The floor becomes $52,800 less $2,500, which is $50,300 — above the starting balance.
Day four closes at exactly $50,300. Under the intraday version the account touched its floor at the latest by that close. Under the end-of-day version it still had $600 of room. A single price that was never realized as a close decided the difference.
And a lock would not have helped here. A floor that locks at the $50,000 starting balance only locks once it gets there, which in this example needs a close of $52,500. The best close was $52,200.
Why firms trail
A trailing floor keeps the loss measured from the account’s best point, which is how a trailing stop protects a single trade. Applied to the whole account it means the firm’s exposure never grows as the account grows. For the trader it means profit is not a cushion until the trail stops.
The practical rule that follows: your usable room is today’s balance minus today’s floor, not the limit printed on the product page. On a trailing account those two numbers drift apart every time the account makes a new high and gives some of it back.
The original data
2 of the 24,971 videos in the search study behind this site put trailing drawdown in the title, at a median of 9,938 views. Against that, 437 titles carry prop firm, at a median of 11,043 views across 258 channels.
Roughly 218 prop firm videos for every one about trailing drawdown in the title. The mechanic that the worked example shows can close an account that is only $100 down gets almost no dedicated coverage, which is why it is worth working through with your own firm’s numbers before paying.
When it fails
The first failure is reading the limit as fixed room. “$2,500 of drawdown” is true on day one only. In the worked week the usable room fell to $200 while the account was barely down, and a trader sizing positions off the headline number would be treating more than twelve times the real room as available.
The second is ignoring the intraday version’s hidden highs. A spike that reverses before the close still lifts an intraday floor, which is why the same week breaches under one rule and survives under the other.
The third is counting on a lock that has not happened. A lock at the starting balance only matters after the floor reaches it.
The fourth is forgetting open trades. A floor set at the close is still checked against open losses during the day.
And the fifth is reading every firm’s version as the same. Static, end-of-day, intraday, locked or unlocked: write down which one yours is, in words, before the first trade.
Related
Drawdown covers the underlying measure and how deep ordinary falls get. Futures prop firm explains the evaluation products where trailing limits are most common. And trailing stop is the same mechanism applied to one trade instead of the whole account.
Write the floor down every evening next to the balance. The gap between those two numbers is your real account size for tomorrow, and on a trailing rule it is smaller than it feels after a good week.
— Michael Whitman
This page is educational, not financial advice. Test every idea on your own charts before risking money.