Trailing Drawdown
Drawdown & Loss LimitsA maximum loss threshold that moves upward as your account reaches new equity highs. Unlike static drawdown, the floor rises with profits, meaning gains raise the minimum balance you must maintain.
Trailing drawdown is the most misunderstood rule in prop trading. When your account hits a new high-water mark, the drawdown floor moves up by the same amount. This means your profit cushion never actually grows until the trail "locks in" at the original account balance.
There are two variants: EOD trailing (floor updates at end of day based on closing balance) and intraday trailing (floor updates tick-by-tick in real time). EOD trailing is more forgiving because intraday spikes in profit do not permanently raise the floor. Intraday trailing is the strictest type.
Understanding which type your firm uses is critical. Many traders blow accounts because they assume static drawdown rules when the firm actually uses trailing. Always check whether drawdown is calculated from balance or equity, and whether it trails intraday or EOD.
On a TopStep $50K account with $1,500 trailing EOD drawdown: you start with a floor at $48,500. You profit $2,000 and close the day at $52,000. The floor moves up to $50,500. If you then lose $1,600, your balance drops to $50,400 -- below the $50,500 floor. Account terminated, even though you were still above your starting balance.
Trailing Drawdown directly affects whether you pass or fail a prop firm evaluation. Unlike trading your own account where you can recover from mistakes over time, prop firm rules create hard boundaries -- violate them once and you lose your challenge fee and have to start over. Drawdown rules are the number one reason traders fail prop firm evaluations. Understanding exactly how trailing drawdown works at your chosen firm is not optional -- it is the foundation of every position sizing decision you make.
Practical example across firms: FTMO and TopStep handle this differently. FTMO is a 2-step firm with static drawdown and a 5% daily loss limit, starting from €155. TopStep is a 1-step firm with trailing drawdown and a 2% daily loss limit, starting from $49. These structural differences mean your approach to trailing drawdown must adapt to whichever firm you choose.
Common mistake: Traders often assume all drawdown rules work the same way. They do not. The difference between static and trailing drawdown can mean the difference between surviving a losing streak and losing your account while still net profitable. Before starting any evaluation, calculate exactly how much room you have in dollar terms, not just percentages.
Static Drawdown
A fixed maximum loss threshold set at account opening that never moves, regardless of how much profit you accumulate. Your drawdown floor stays at the same level for the lifetime of the account.
EOD Drawdown (End-of-Day Trailing)
A trailing drawdown variant where the floor only updates at the end of each trading day based on the closing balance. Intraday profit spikes do not permanently raise the floor, making it more forgiving than intraday trailing.
Intraday Drawdown (Real-Time Trailing)
The strictest trailing drawdown variant where the floor moves upward tick-by-tick as your equity reaches new highs during the trading session. Every unrealized profit spike permanently raises the minimum balance required.
Drawdown Floor
The minimum account balance or equity level before a prop firm terminates the account. If your balance or equity touches this level, the account is immediately closed and the evaluation or funded status is lost.
Equity-Based Drawdown
A drawdown calculation method that includes unrealized (open) trade profits and losses in the account value. Your equity fluctuates with every tick while positions are open, making this stricter than balance-based drawdown.