How trailing drawdown works

Most prop firm challenges are not failed on the profit target. They are failed on the drawdown rule, and very often on a misunderstanding of it. A trader looks at a balance that is $1,500 up and feels safe, when the floor has quietly followed them up and they are a few hundred dollars from failing. This guide walks through the four drawdown rules you will meet, with the same numbers each time, so the differences are concrete.

The two numbers every rule starts from

Every drawdown rule has a starting balance and a maximum drawdown, the most the account is allowed to fall. On a $50,000 account with a $2,000 drawdown, the account fails when its balance touches a floor. The rules differ only in where that floor sits and whether it moves.

We will use one example throughout: a $50,000 account, a $2,000 maximum drawdown, and three trading days of +$1,000, +$1,500 and −$800. The balance closes at $51,000, then $52,500, then $51,700.

1. Static drawdown

The simplest rule. The floor is set once and never moves.

After the three days, the balance is $51,700 and the floor is still $48,000, so there is $3,700 of room. Every dollar of profit is a dollar of extra cushion. This is the most forgiving rule, which is why it is the least common on futures evaluations.

2. Trailing end-of-day drawdown

The floor follows your highest closing balance, staying $2,000 below it. It only moves up, never down, and it only moves at the end of the day.

Same three days, same $51,700 balance, but now only $1,200 of room. That is the trap: the account is $1,700 up, yet the trader has less than a third of the room a static rule would give. Profit you make and then give back does not come back as cushion, because the floor already moved up on the day you made it.

3. Trailing intraday drawdown

The floor follows your highest balance at any moment, including open profit on a trade you have not closed yet. Suppose on day 2 a trade was up $1,900 at its best before you closed it for +$1,500. The balance touched $52,900 during the day, so:

Now there is only $800 of room, even though the closes are identical to the end-of-day example. Intraday trailing punishes letting winners retrace: a trade that runs $400 further before coming back raised your floor by $400 and gave you nothing for it.

This is also why intraday trailing is the hardest rule to track. Your closed trades do not record the open-profit peaks the firm trailed from, so any figure worked out from closes alone is the lowest the floor could be, not where it is. Traquil’s prop page says exactly this on an intraday account rather than showing a confident wrong number.

4. Trailing drawdown that locks

A compromise many futures firms use. The floor trails like an end-of-day rule until it reaches a set level, usually the starting balance, and then stops for good.

In our example the trailed floor would be $50,500, but it stops at $50,000, leaving $1,700 of room. Once the account has closed $2,000 above its start, the floor is locked and from then on behaves like a static floor at the starting balance. Some firms lock a little above the start instead; the idea is the same.

The four rules side by side

Same trades, a spread of $2,900 in how much room is left. If you only know your balance, you do not know where you stand.

What this means in practice

• Know your number before the session, not your balance. The figure that matters is room to the floor. Write it down in your session prep.
• On a trailing rule, early profit is fragile. Until the floor locks, every new high raises it. A strong first week followed by a normal pullback is the classic way trailing accounts fail.
• On an intraday rule, watch open profit. A trade that runs far and comes back costs you room even if it closes green.
• Daily loss limits are a separate rule. Many firms also cap how much you can lose in one day, which resets each day and can end an account even when the drawdown has room.

Firms change their rules, and the names vary. Read your own firm’s rulebook for which rule applies and where any lock sits. This guide explains the mechanics; it is not advice on which firm or account to choose.

Work it out for your own account

The prop firm drawdown calculator takes your starting balance, drawdown and daily results and shows the floor under all four rules, day by day. If you journal in Traquil, the prop account page keeps that figure up to date from every trade you log, alongside the daily loss limit, the target and the consistency rule.