Prop firm drawdown simulator

Enter a series of daily results, pick a firm and account size, and watch the drawdown floor move: end-of-day, intraday trailing or static, including where it stops trailing (the lock). The chart shows whether, and on which day, the account would fail.

Firm preset (optional)MarketFirm / productAccount sizePhase

Fills the fields below from our data. You can still change every value.

Drawdown typeStarting balance ($)Max drawdown ($)Profit target ($)Leave empty for a funded account.LockLock offset ($)0 = floor stops at the starting balance.Daily loss limit ($) DLL is a hard breachDaily P&L, one value per daySeparate days with commas or new lines. Optional intraday best/worst: 300@650/-200 (closed +300, high +650, low −200 vs the day's open).Sample pathScaled to your max drawdown.

Result: -
Final balance: -
Final floor: -
Tightest room: -
Floor locked: -

Balance (close)Intraday rangeDrawdown floorStart / target

Day-by-day table

How this is calculated

The simulator replays your days in order, starting from the starting balance.

Static: the floor is fixed at start − max drawdown.
Trailing end-of-day: after each day the floor rises to (closing balance − max drawdown) if that is higher. During the day the floor does not move.
Trailing intraday: the floor follows the highest equity of the day, including open profit. With only a daily high and low we assume the high came first (worst case), so the floor rises before the low is tested.
Lock: the floor stops trailing at a balance level. "Start + offset" caps it at starting balance + offset (offset 0 = the starting balance). "Target reached" caps it at start + target − max drawdown. Firm presets use the firm's structured lock data when we have it; otherwise the note above the chart says it is unverified and you should set it yourself.
Fail: the account fails on the first day whose low touches or goes below the floor, or whose loss from the day's opening balance reaches a hard daily loss limit. A soft limit only marks the day.
Commissions, fees and a firm's own rounding are not included. Up to 250 days are simulated.

Frequently asked questions

What is the difference between EOD and intraday trailing drawdown?

An end-of-day (EOD) drawdown only moves up from your closing balance once per day. An intraday trailing drawdown follows your highest equity in real time, including open profit you have not banked, so a trade that runs up and comes back can lift the floor and then hit it in the same day.

What is a drawdown lock?

Many futures firms stop trailing the drawdown once it reaches a certain level, for example the starting balance or the starting balance plus a small offset. After that the floor is static. Where and when it locks differs per firm, per phase and sometimes per platform, so the simulator lets you set it.

How do I enter intraday highs and lows?

Write a day as 300@650/-200: the day closed +$300, was up $650 at its best and down $200 at its worst, all measured from the day's opening balance. Without the @ part we assume the day moved straight to its close.

Does the simulator know exactly when my account would fail?

Only as exactly as your input. With daily numbers we assume the intraday high came before the low (the worst case for an intraday trailing drawdown). Real fills, commissions and the firm's own rounding can differ.

These calculators use simplified, textbook versions of each rule and are not financial advice. Always read the firm’s own rules.

More: Drawdown calculator · Drawdown types explained · Strategy fit · Drawdown lock