Max Drawdown
The overall account loss cap — the total amount an account can drop before the firm closes it.
Definition
Max drawdown is the overall loss limit on a prop firm account, expressed as a percentage of starting balance (or peak balance, depending on the calculation method). Breach it and the account is closed. Max drawdown can be static (fixed from the starting balance), trailing (moves up with profits and locks in), or end-of-day trailing (moves up only at daily close). It is distinct from daily drawdown — max drawdown caps total account-level loss, while daily drawdown caps loss within a single day.
Example
Why It Matters
Max drawdown is the single most important rule on a funded account because breaching it typically ends the account — no reset, no second chance unless the firm offers a paid reset option. Understanding whether a firm's max drawdown is static, trailing, or EOD-trailing directly changes how you size positions and when you take profit off the table. Traders who conflate max drawdown with daily drawdown are a large share of early account blowups.