A drawdown limit is the maximum loss an account may take before it is closed or suspended — a rule imposed by a prop firm, not a market mechanic.
Two details decide how strict it really is. Whether it measures balance or equity: an equity-based limit counts unrealised losses, so an open position that dips can breach it before you have lost anything realised. And whether it is static or trailing: a trailing limit follows your highest balance upward, which means profits raise the floor and a normal retracement after a good week can end the account.
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Guide
Why Leverage Limits Differ by Country and Entity
The same brand can offer very different maximum leverage. Why the licensed entity decides it, what else travels with that entity, and where to check.