Drawdown rules: daily vs trailing

Two drawdown rules, two different jobs

Drawdown is how much you can lose before the firm cuts you off. There are two flavors, and most evaluations use both at the same time. Daily drawdown is the single-day cap — typically 3 percent of your account or a fixed dollar limit. On a $50k account, that's roughly $1,500 in a single trading day. Hit it, and your account is suspended until the next session. Some firms terminate immediately on a daily violation.

Trailing drawdown is the slower, more dangerous rule. It follows your highest equity point. Imagine a leash attached to your peak balance. You start at $50,000 with a $2,500 trailing drawdown — you can't fall below $47,500. You make $1,500, so your peak is now $51,500 and the leash drags up — you can't fall below $49,000. You make another $1,000, peak is $52,500, you can't fall below $50,000. The cap ratchets up. It never ratchets back down.

An important variant: some firms use a 'static at initial balance' trailing rule. That means the trailing cap stops moving once you reach your original starting balance plus the drawdown buffer. So a $50k account with $2,500 trailing might lock its cap at $52,500 once you cross that — and from then on, the rule is effectively static. That's much friendlier. Check your specific firm's small print because the difference between a continuously trailing cap and a locked cap is enormous.

How to actually trade under both rules. For daily drawdown: set a hard stop loss on the day. If you've lost 1.5 percent before lunch, you're done. Don't push to 2 or 2.5 — leave room for slippage and partial fills that can push you over. For trailing drawdown: respect peaks. Once you've made meaningful profit, your stop loss on individual trades should tighten. The drawdown cap doesn't care about your historical wins; it only sees the distance from your current peak.

Recap: daily drawdown caps a single day's loss. Trailing drawdown follows your peak equity upward. Trailing is the harder rule because it ratchets tighter as you win. Some firms lock the trailing cap once you cross initial balance — that variant is much kinder. Read your firm's exact terms.