Trailing vs static drawdown

Static drawdown

With a static drawdown, the floor is set once, from the starting balance, and never moves. On a $100,000 account with a 10% max loss, the floor is $90,000 for the whole challenge.

That means profit adds to your room. If you're up $6,000, you can lose $16,000 before failing, and the further ahead you get, the safer the account becomes.

Trailing drawdown

With a trailing drawdown, the floor sits a fixed distance below the highest point your account has reached. On a $100,000 account with a 6% trailing drawdown, the floor starts at $94,000. When your balance reaches $103,000, the floor moves up to $97,000. If you then lose $2,000, the floor stays at $97,000: it only ever moves up.

So profit doesn't add to your room the way it does under a static drawdown. Your room is measured from your best balance, not from where you started, so it can't grow beyond $6,000 until the floor stops trailing. A run of losses after a winning streak can fail an account that's still in profit.

Balance-based or equity-based

Firms track the highest point in one of two ways:

• Balance-based: the floor moves only when you close a trade at a new high balance. Open profit doesn't count until it's banked.
• Equity-based: the floor moves with open profit too. If a trade goes $2,000 into profit and then comes back to your entry, the floor has still moved up $2,000, and you've lost that much room without losing a cent.

Some futures prop firms use an end-of-day trailing drawdown instead, which only updates at each day's close. Equity-based trailing is the strictest of the three, so check which one your firm uses.

When the trailing stops

Most firms stop trailing once the floor reaches a set level, usually the starting balance. With a 6% trailing drawdown on $100,000, that happens when your best balance reaches $106,000: the floor locks at $100,000 and from then on behaves like a static one. Getting there is the first real goal on a trailing account, because after it you'd have to give back all your profit to fail.

The same trades under each

Here's one run of trades on a $100,000 account with a 10% max loss, measured both ways (trailing the highest closed balance):

Both accounts end back at $100,000, but the trailing one has half the room left. Another $5,000 losing run would fail it, while the static account would still have $5,000 to spare.

How to trade under a trailing drawdown

• Size from your room, not the account. On a trailing account the number that matters is the distance to the floor. Risking 1% of $100,000 is a sixth of a $6,000 drawdown, so six losses in a row would end it.
• Watch open profit on equity-based trailing. Profit you give back still lifts the floor, so taking partial profits or trailing your stop limits how much room a reversal costs you.
• Treat the lock as the first milestone. Once the floor stops trailing, the account behaves like a static one and your profit becomes a real buffer.
• Keep the daily limit in mind. The trailing floor and the daily loss limit apply together, and whichever is closer is the one that matters today. The drawdown calculator shows both.

Which is better?

A static drawdown is more forgiving: every profitable trade makes the account safer. Trailing accounts are often cheaper, or come with a single phase, because they're harder to keep alive. Neither is better in itself; what matters is how your strategy's results move. Strategies that win in bursts and then give some back suffer most under trailing rules, while steady strategies with small swings hardly notice the difference.

Test your strategy under both

The quickest way to know which suits you is to trade the same strategy under each. On PropDrill you can pick a static or trailing max loss for any challenge and replay real charts from 2015 onwards; the floor moves exactly as described here, and you can see how close you are to it as you trade. For the rules that apply alongside it, read prop firm challenge rules, explained.

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