Trailing Drawdown Explained: A $100,000 Futures Example

Every prop firm evaluation has one number that decides your fate long before your strategy does: the trailing drawdown.

Unlike a static drawdown, which sets a fixed loss floor the moment you open the account, a trailing drawdown follows your equity upward. It never moves back down. That single mechanic is responsible for more failed evaluations than bad entries, bad exits and bad risk management combined.

The mechanic, in numbers

Take a $100,000 futures evaluation with a $3,000 trailing drawdown. Your floor starts at $97,000. You have $3,000 of room.

Now suppose the market moves your way and you are up $1,500. Your equity peak is $101,500 — so your floor ratchets up to $98,500. The room between your equity and your floor is unchanged, but the absolute floor is now $1,500 higher than it was.

Here is the trap. If you give back that $1,500 and then lose another $1,400, your equity sits at $100,100 — still profitable on the day, still above your starting balance. And you are finished, because $98,500 is breached.

You did not lose money. You lost the evaluation.

Why it feels unfair but is not

Traders complain that trailing drawdowns punish unrealised profit. In practice the rule is a forced discipline: it tells you that open profit is not yours until you take it. A static drawdown lets you sit in a winning trade until it becomes a loser. A trailing drawdown charges you for that.

The practical consequence is that position sizing must be calculated against the floor, not against your entry. If your stop is 200 points away and your base contract gives you $5 per point, you are risking $1,000 per contract. Three contracts is $3,000 — your entire buffer, on one trade.

What to check before every entry

  • How far is my current floor from my live equity, in dollars — not in points?
  • If this trade goes my way and I do not exit, where does the floor move to?
  • After a winning session, do I need to reduce size to keep the same relative room?

Most firms publish the answer to the first question on the dashboard. Very few traders actually read it mid-session.

Where this bites hardest

Futures evaluations with trailing drawdowns and intraday-only closes are the harshest version, because you cannot hold a runner overnight to convert a peak into a settled gain. Those products also tend to have the fastest evaluation timelines, which is why a one-step futures pass can succeed in three to five sessions — and why the same product fails so many experienced traders.

If you would rather not manage the floor yourself, that arithmetic is exactly what a prop firm challenge passing service such as ElitePropX exists to handle. But the rule itself is not complicated. Treat the floor as the real starting balance, and most of the mystery disappears.

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