There are three main drawdown styles in futures prop firm evaluations: end-of-day (EOD), trailing, and static. They sound similar and do different things. Picking the wrong one for your style is one of the most common, and most expensive, early mistakes.
Static drawdown
A static drawdown is a fixed dollar line from the starting balance. A $50K account with a $2,500 static drawdown means your account equity can never go below $47,500, period. Once you hit the profit target the drawdown does not move, and once you have $3,000 of profit it's still $47,500 underneath you.
Static is easy to plan around. It's also the strictest drawdown in absolute dollar terms once you start making money, your cushion never grows.
End-of-day (EOD) drawdown
End-of-day drawdown updates at each daily close. On a $50K EOD account, the drawdown is $2,500 below your highest end-of-day balance. If you close Monday at $52,000, the drawdown moves up to $49,500 for the rest of Tuesday, regardless of what happens intraday on Tuesday.
This style is friendly to traders who scale into winners. A big drawdown inside a profitable day doesn't matter, because the line only moves at the close.
Trailing drawdown
Trailing drawdown is the strictest version. It tracks the highest unrealized profit during the trading day, so if you're up $800 at 10:02am, the drawdown moves up from that moment, and giving back $800 later in the same day can trip it. Most firms stop the trailing once you hit the profit target plus a small buffer, but inside the evaluation it's live.
The trailing-drawdown trap
Traders who scale in during a winning run often blow a trailing drawdown not on a losing day but on a giveback inside a winning day. If you add size on green days, think twice before buying a pure trailing account.
Hybrid models
A few firms combine: trailing during the evaluation, EOD once funded. Or static during evaluation, trailing on scale accounts. Always read the firm's rules page to confirm which one applies at each stage.