Trailing drawdown vs static: what your challenge actually allows
Trailing and static max drawdown rules change how much room you really have. Here’s how to check before you size the next trade.
Two challenges can both say “10% max drawdown” and still fail you for different reasons. One measures from your starting balance. The other trails a high-water mark as you make money.
If you size as if the floor never moves, a winning week can quietly shrink your room.
Static drawdown
The floor is fixed from the start. On a $50k account with 10% max DD, you typically cannot go below $45k — even after you grow the account.
Static rules are easier to track. Your remaining risk is current equity minus that fixed floor.
Trailing drawdown
The floor rises with your peak equity (or end-of-day equity, depending on the firm). Hit +$3k, and the same 10% may now trail that peak. A pullback that felt safe last week can breach the rule.
This is why “I’m up overall” is not a free pass. Trailing rules punish giving back open profits.
Check the number, not the slogan
Before the open:
- Confirm whether your firm trails or stays static.
- Note what the floor is today (peak vs start).
- Convert remaining room into dollars.
Use the free prop firm drawdown calculator. Set account size, max DD %, and optional high-water / current equity so remaining total risk matches the rule you are actually under.
One habit for trailing accounts
When you are green for the week, cut size — do not increase it. Trailing DD means winners raise the floor. Protecting the cushion matters more than “finishing the target today.”
TradeKeel stores challenge rules per account so the journal and the risk check stay attached to the same evaluation.