Drawdown type is one of the most important factors when choosing a prop firm for your EA, and one of the least understood. Most traders focus on the percentage limit without realizing that how the drawdown is calculated completely changes the risk profile of the challenge.
A 10% drawdown limit on a static account and a 10% drawdown limit on a trailing account are two very different things. This article explains the difference and which type is better suited for automated trading.
How Static Drawdown Works
Static drawdown is calculated from a fixed reference point: your starting balance. The limit does not move regardless of how much profit you make.
Static drawdown on a $100K account with 10% limit
Starting balance: $100,000
Maximum loss allowed: $10,000 (fixed, never changes)
After making $8,000 profit, your balance is $108,000. Your drawdown limit is still $10,000 from the original $100,000. You can now lose up to $18,000 before breaching the limit.
The more you profit, the more room you have.
This is the most EA-friendly drawdown type because the room is predictable and only grows as you profit. An EA configured to stay within a 7% drawdown from starting balance will never breach a 10% static limit, regardless of what happens to the equity curve in between.
How Trailing Drawdown Works
Trailing drawdown follows your highest equity point. Every time your account reaches a new equity high, the drawdown limit moves up with it. Your available room shrinks as you profit.
Trailing drawdown on a $100K account with 10% limit
Starting balance: $100,000. Drawdown floor: $90,000.
EA makes $5,000 profit. Equity: $105,000. New floor: $94,500 (trailing up).
EA then pulls back $5,000. Equity: $100,000. Floor is still $94,500.
EA is now back at breakeven but has only $5,500 of room left, not $10,000.
If the EA pulls back another $6,000 from the $105,000 high without recovering first, the account is breached even though it is still at breakeven.
The trailing DD trap
An EA can be profitable overall and still breach a trailing drawdown limit. If the strategy makes 8% then pulls back 6% before recovering, that 6% pullback from the high may exceed the trailing limit, even though the account is still showing a 2% gain from starting balance.
Side by Side Comparison
Static Drawdown
- Limit calculated from starting balance
- Room grows as you profit
- Predictable and easy to model in backtests
- EA configuration straightforward
- More forgiving for strategies with pullbacks
- Used by: FTMO, FundedNext, Blueberry Funded, Bright Funded, E8 Markets, Blue Guardian
Trailing Drawdown
- Limit follows highest equity point
- Room shrinks as you profit
- Harder to model, depends on equity path, not just result
- EA must avoid deep pullbacks even after strong runs
- Unforgiving for mean-reversion strategies
- Used by: some The5ers plans, Nordic Funder One-Stage PRO, Funded Trading Plus 1-Step
How Each Type Affects EA Trading
Static drawdown: what to configure
With static drawdown, you configure your EA based on the starting balance. Set your maximum total risk at 7-8% of starting balance, leaving a 2-3% buffer before the firm's limit. This buffer stays constant throughout the challenge.
The main risk with static drawdown is the daily limit: most firms set this at 4-5% of balance. An EA that occasionally has a bad day with multiple losses can hit the daily limit even if the total drawdown is well within range.
Trailing drawdown: what to configure
Trailing drawdown requires a fundamentally different approach. You need to track not just your total drawdown from starting balance, but your maximum pullback from any equity high.
If your EA made 6% then pulled back 4%, the trailing drawdown consumed 4% of your limit, even though you are still up 2%. An EA on a 10% trailing limit that reaches 8% profit has only 2% of room left for any subsequent pullback.
For most standard EAs, trailing drawdown is the wrong choice. The only scenario where it works is if your EA has an extremely smooth equity curve with minimal drawdowns between profit highs, which is rare.
Which Firms Use Which Type
Always verify the drawdown type on the official firm website before purchasing, firms occasionally change their rules. As a general guide based on current data:
Static drawdown, see FTMO, FundedNext (Stellar), Blueberry Funded, Bright Funded, E8 Markets, Blue Guardian, Goat Funded Trader
Trailing or mixed: some The5ers plans (Bootcamp uses relative trailing), Nordic Funder One-Stage PRO, Funded Trading Plus 1-Step Express, Alpha Capital Alpha One plan
For most EA traders, the recommendation is clear: choose a firm with static drawdown. The predictability makes it far easier to configure your EA's risk settings correctly and avoid unexpected breaches.
Compare drawdown types across all EA-friendly firms
View All Prop Firms →Related: How to configure your EA for a prop firm challenge, including risk settings, daily loss stops, and what to monitor.
See also: FTMO EA rules explained, the most popular static DD firm reviewed in detail.