Prop Firm Rules Explained

A daily drawdown limit caps how much an account may lose within one trading day. Breaching it usually ends the account immediately, even if the account is profitable overall.

The critical detail is the reference point. Some providers measure the day's loss from the starting balance, others from the highest equity reached that day. The second definition is stricter, because giving back an open profit can count toward the limit.

A static maximum drawdown is a fixed floor set at the start and never moves. A trailing maximum drawdown follows the account upward as it gains, so the loss threshold rises with new equity or balance highs.

Trailing rules are frequently misunderstood. Under an equity-based trailing model, an unrealised profit can raise the floor before you close the trade, which means a normal retracement can breach the limit.

Evaluations usually set a percentage profit target for each stage. Some providers add a minimum number of trading days; others remove time limits entirely so an evaluation can be completed at any pace.

A shorter deadline pushes position sizing upward, which interacts badly with a tight daily limit. Read the target and the drawdown rules together rather than separately.

A consistency rule limits how much of total profit may come from a single day or a single trade. It is designed to filter out results driven by one oversized position.

Consistency rules sometimes apply only at payout rather than during the evaluation, so check which stage the rule governs.

Some programs restrict opening or holding positions around high-impact economic releases, and some prohibit holding positions over the weekend or over a session rollover.

These restrictions are among the most common accidental breaches, because they can be triggered by a position opened well before the restricted window.

Policies range from full permission to a ban on any automation. Where EAs are allowed, latency arbitrage, tick scalping and high-frequency strategies are often excluded specifically.

Copy trading across multiple accounts, including accounts at different firms, is restricted by many providers because it duplicates a single risk decision.

Payout eligibility usually depends on a minimum profit, a minimum number of trading days, and the payout cycle length. The profit split is only one part of the outcome.

Check whether the first payout differs from later ones, how withdrawals are processed, and whether the account balance resets after a payout.

Most account losses are procedural rather than analytical: a misread trailing drawdown, an oversized position taken to hit a deadline, a position held into a restricted news window, or a rule that changed between the evaluation and funded stages.

Trading an evaluation carries the risk of losing the fee paid. No program guarantees funding, income or profitability.