Trailing drawdown calculator

Exactly how far you are from breaching your prop account — end-of-day or intraday trailing, with the freeze-at-start rule firms actually use. Free, no signup.

Distance to breach
$1200
floor at $49200 · 40% of the limit consumed
How does a trailing drawdown work?+

Your maximum loss limit follows your equity peak instead of staying fixed at the starting balance. Make profit and the floor rises with you; give profit back and you can breach while still above your starting balance.

What is the difference between end-of-day and intraday trailing?+

End-of-day trailing (Topstep style) only moves the floor at each session close, so an intraday spike you gave back never counts. Intraday trailing (Apex style) follows every new equity high the moment it prints, including while a trade is open.

Why does my buffer shrink when I'm in profit?+

Because the floor trails your peak. If your peak is $52,000 with a $2,000 limit, the floor sits at $50,000 — your original starting balance. That's why many firms freeze the trail once it reaches the start.

Stop calculating this by hand.

Merlin tracks your Topstep and Apex gauges live from your imported trades and warns you before the firm does.

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