How Trailing Drawdown Works in Prop Firms (EOD vs Intraday vs Static)

More traders fail prop firm evaluations on the drawdown rule than on anything else — and usually not because they lost too much, but because they misunderstood how the drawdown floor moves. Get this one number right and most of the "random" account blow-ups stop happening.

The drawdown limit is the lowest your account is allowed to fall before the firm closes it. The catch is that the floor isn't fixed — on most futures evals it trails your balance upward. There are three ways firms calculate it, and they behave very differently.

1. Intraday (real-time) trailing drawdown

The strictest version. The floor follows your highest unrealized equity tick by tick. If you're up $800 on an open position, your floor just rose by $800 — even if you give it all back and close flat. This is why a winning trade you didn't bank can still end your account: the peak counted, the giveback counted, and the floor never came back down. Apex's intraday-trail plans work this way.

2. End-of-day (EOD) trailing drawdown

More forgiving. The floor only moves up based on your end-of-day balance, not intraday spikes. You can be up $1,500 mid-session and give it back without raising your floor — only what you keep at the close counts. Apex's EOD plans and Tradeify use EOD trailing. For most traders this is the difference between surviving a volatile session and getting stopped out on a wick.

3. Static drawdown

The floor never moves. On a $50k account with a $2,000 static drawdown, your line in the sand is $48,000, period — whether you're up $5,000 or down $500. Static limits are rarer in futures but common in forex/CFD evals.

The part everyone misses: the floor usually locks

On most trailing accounts the floor stops rising once your peak reaches your starting balance plus the drawdown amount. Example: a $50k account with a $2,500 trail. Once your balance peaks at $52,500, the floor locks at $50,000 (your starting balance) and never trails again. Past that point you can't lose your own deposit-equivalent — but until you get there, every dollar of profit drags the floor up behind you.

A worked example

Say you take a short on NQ, get up $1,200, then it reverses and you exit for +$300. On an EOD account, only the +$300 you closed with affects tomorrow's floor. On an intraday account, the floor already moved up as if you'd made $1,200 — so you're now $900 "closer" to your limit than your balance suggests. Same trade, completely different risk depending on the firm.

How to not blow up on it

Know which type your firm uses before you fund. Track your distance to the floor, not just your P&L. On intraday-trail accounts, bank partials rather than letting a winner round-trip. And size so that a normal losing day can't put you within striking distance of the limit. You can compare every major firm's drawdown style on the firms page.

This is educational information, not financial advice. Prop firm rules change — always confirm the current terms on the firm's own site before funding an account.