Maximum Drawdown (Max DD): The Total Leash, Defined

Maximum Drawdown: The Cumulative Loss Limit

By PropTrader1 2 min read Published October 28, 2026

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Maximum drawdown (max DD) is the total peak-to-trough loss a prop firm allows across the whole life of an evaluation or funded account - the cumulative leash behind the daily one. Typical allowances run 6-12% depending on the firm and product.

It differs from the daily loss limit in horizon: the daily limit resets each session, the maximum never does. You can breach it through a run of modest losing days that individually break nothing, which is why budgeting only against the daily number fails.

Worked example (recovery maths): a 10% drawdown needs an 11.1% gain to get back to breakeven. A 20% drawdown needs 25%. A 50% drawdown needs 100%. Losses compound against you exponentially, which is the whole reason firms cap the downside and responsible traders stay far inside the cap.

Whether the "peak" is the starting balance (static) or your high-water mark (trailing) changes everything - see drawdown types. The full guide: maximum drawdown explained; the per-day leash: daily loss limit.

Plain-language material on leveraged-trading risk is maintained by the ESMA investor corner.

Part of the rules & drawdown cluster and the full prop firm glossary.

Frequently Asked Questions

Why is a 50% drawdown harder to recover than a 10% one?

A 50% drawdown requires a 100% gain to recover, while a 10% drawdown only needs 11.1%. Recovery math is exponential. At 30% drawdown you need 42.9% to break even. This is why prop firms cap drawdown at 10-12% rather than higher percentages.

What is the 3-5-7 rule in forex?

The 3-5-7 rule suggests risking 1-3% per trade, keeping total open risk at 5% or less, and limiting single market exposure to 7%. It is a general risk guideline, not a prop firm rule, but following it naturally keeps you within most max drawdown limits.

What is a good maximum drawdown?

For prop firm trading, keeping your actual drawdown under 5% is excellent. Most firms allow 10-12%, but staying well below the limit demonstrates strong risk management and gives you a buffer for unexpected market events.

Is maximum drawdown calculated on balance or equity?

It depends on the firm and drawdown type. Static drawdown is typically calculated on starting balance. Trailing drawdown follows your highest equity. Some firms include floating losses in their calculation, making equity the relevant measure.

What happens when you breach maximum drawdown?

Breaching maximum drawdown results in immediate and permanent account closure. All positions are closed automatically, the challenge is terminated, and there is no refund or appeal. It is the final rule with no second chances.

What is the difference between daily drawdown and maximum drawdown?

Daily drawdown resets every day and limits your loss within a single session. Maximum drawdown is cumulative across the entire challenge or funded period. You can breach max drawdown through many small daily losses that accumulate over time.