Risk Academy

Trailing Drawdown Explained

Here is the sentence that surprises almost every new funded trader: a trailing drawdown does not measure your losses. It measures how much profit you give back — which is why the most dangerous day of your evaluation is the one right after your best day.

The mechanic, in one minute

A static drawdown draws one line below your starting balance and never moves it. A trailing drawdown draws that line below your highest point — and every time you make a new high, the line climbs with you. It never climbs back down. Profit raises your floor; losses never lower it.

Starting balance $50,000Best day → new highFloor locks $2.5k below the peakBreach — still in profitThe floor only moves up. Profit raises it; losses never lower it back.
A trailing drawdown ratchets: every new equity high drags the failure line up behind you — so you can breach the account while still above your starting balance.

A simple example

$50,000 account, $2,500 trailing drawdown. Your floor starts at $47,500.

Week one goes great: you run the account up to $53,000. The floor trails to $50,500 — above your starting balance.

Now a normal losing streak: −$2,600 over three days. You're at $50,400 — still up $400 lifetime — and the account is breached. You were profitable the entire time and you still failed.

With a static drawdown, the same trading would have left you $2,900 away from failure. Same trades, same market — the drawdown model was the whole difference.

The three variants (read this twice)

  • End-of-day trailing

    The floor updates once per day from your closing balance. Intraday spikes don't count against you. The most forgiving trailing model — you can scale out of a winner without dragging the floor up mid-trade.

  • Intraday / unrealized trailing

    The floor trails your live equity peak — including open profit you never banked. Let a winner run to +$1,500, give it back to breakeven, and your floor moved up $1,500 anyway. This model punishes exactly the behavior most strategies need: letting winners breathe.

  • Trailing that locks at breakeven

    Some firms stop the trail once the floor reaches your starting balance (or start + a buffer). This converts into a static drawdown after your first good run — materially better for you. Firms that do this advertise it; if the FAQ doesn't say it, assume it doesn't happen.

Where traders fall

  • They size positions off the account balance instead of the distance to the floor — after a good week, that distance is often half of what they think.
  • They let winners run to big open profit, scratch the trade, and don't realize the floor trailed the unrealized peak (on intraday models).
  • They treat 'up $400 lifetime' as safe. With a trailed floor above starting balance, small red days end accounts that never had a losing week.
  • They never ask the one question that matters: does the trail ever stop?

How to check this before you buy

  • Ask: EOD or intraday? Does open (unrealized) profit move the floor?
  • Ask: does the floor lock at breakeven or keep trailing forever?
  • Recalculate your real risk every morning: distance to floor, in dollars, for today — not the day you bought the account.
  • After a strong run, size down. Your buffer is smallest exactly when your confidence is biggest — that asymmetry is the whole trap.

Compare drawdown models across firms

Compare Prop FirmsMax Drawdown Guide

Educational content only — not financial advice. Drawdown mechanics differ by firm and account type; always verify the current rulebook.