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Two firms can advertise the same '10% max drawdown' and have wildly different odds of survival. The difference is the type.
Drawdown is the most important rule in any evaluation, and also the most misunderstood. The headline percentage is almost meaningless on its own — what matters is how it's measured and whether it moves.
There are three common types you'll meet: static, trailing (balance or equity), and end-of-day trailing. Here's exactly how each behaves, with a worked example.
A static (or 'absolute') drawdown is a fixed floor set from your starting balance. On a $100k account with a 10% static drawdown, your account dies if equity touches $90,000 — full stop. It never moves up as you profit, and never tightens.
This is the most forgiving and the easiest to manage: one number, written once, valid for the whole evaluation.
A trailing drawdown follows your highest point. On a $100k account with a 10% trailing drawdown, the floor starts at $90k; if your balance reaches $105k, the floor trails up to $94.5k. Bank profit and the line you can't cross rises with you.
The catch is whether it trails balance or equity. An equity-trailing drawdown can tighten on an unrealised spike — a trade that goes far in your favour and then comes back can move your stop-out level even though you never booked the profit.
End-of-day (EOD) trailing only updates the floor based on your balance at the daily close, not your intraday peak. That means intraday swings don't ratchet the floor against you; only days you actually finish higher raise it.
For active intraday traders this is meaningfully safer than live equity trailing, while still rewarding consistent gains.
A 10% static drawdown and a 10% equity-trailing drawdown are not the same product. The static one gives you a fixed, generous runway; the equity-trailing one can quietly shrink your room every time a trade spikes in your favour.
Before you start, identify the type, then compute and write down the exact equity level that kills the account today — and recompute it whenever a trailing floor moves.
Balance drawdown is measured from your closed-trade balance; equity drawdown includes open, unrealised P&L. Equity-based rules are stricter because an open trade moving against you — or a trailing floor following an unrealised spike — can breach the limit before you've closed anything.
Not inherently — it just requires different management. The risk is not realising the floor has trailed up after a profitable run, leaving less room than you think. End-of-day trailing is generally more forgiving than live equity trailing.
For a static drawdown: starting balance minus the drawdown amount. For a trailing drawdown: highest relevant point (balance or equity, per the rules) minus the drawdown amount — recomputed every time a new high is made.
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Educational content only — not financial advice and not affiliated with the firms mentioned. Rules change often; verify against a firm's official terms before relying on any detail.