Drawdown is the decline from an equity peak to a subsequent trough. It is the single metric that ends most prop firm challenges — not lack of profit.

Types of drawdown

  • Absolute drawdown — how far below the starting balance the account has fallen.
  • Maximum drawdown — the largest peak-to-trough drop over the account's life.
  • Daily drawdown — loss measured within one trading day, usually from the day's starting balance or equity.
  • Trailing drawdown — a limit that moves up with your equity high-water mark, common at futures and some forex prop firms.

How prop firms measure it

Most firms enforce two rules simultaneously, for example: maximum 5% daily loss and 10% overall loss. Crucially, many measure equity, not balance — a floating loss on open positions can breach the rule even if you never close the trades. Some reset daily limits at midnight server time; some at 5pm New York. Read your firm's definition carefully.

Why manual control fails

By the time a human reacts to a fast market, an open basket of trades can blow through a daily limit in seconds. This is why serious challenge traders automate the cutoff.

Automating protection

An EA with a drawdown guardian tracks equity tick by tick and hard-stops trading before the firm's threshold. Apex Drawdown Zero enforces configurable daily and overall equity limits and flattens all positions when a limit is approached, leaving a safety buffer under the firm's rule.

Try our free drawdown calculator to see how consecutive losses compound.