Trailing drawdown is one of the most misunderstood rules in prop firm trading, and it’s also one of the main reasons traders lose accounts — even when their strategy is profitable.


Here’s a simple way to understand it:


A trailing drawdown follows your account balance upward as you make profits. But when your balance drops, the drawdown level does not move back down.


Example:


• Starting balance: $100,000


• Max drawdown: $10,000


• Initial minimum equity allowed: $90,000


If your account grows to $105,000, the drawdown level moves up to $95,000.


Now if you lose trades and drop below $95,000 — the account is breached.


Even though you’re still above the original $100,000 starting balance.


This is where many traders get confused.


The biggest mistakes with trailing drawdown are:


• Increasing lot size after profits


• Giving back gains too aggressively


• Not adjusting risk after account growth


• Treating profits as “buffer capital”



In reality, once the drawdown locks higher, your risk tolerance should often decrease — not increase.



Understanding this rule alone can dramatically improve survival in prop firm environments.



Curious — do you prefer trailing drawdown models or static drawdown models when choosing a prop firm?

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