What is Maximum Drawdown in Trading: And Why It Decides Who Stays Funded
If you've blown a prop account or two, the cause was almost certainly drawdown, not strategy. Knowing exactly how drawdown is measured, where your real risk capacity is, and which firms use which model is the difference between a one-month flame-out and a 12-month funded career.
Drawdown in plain English
Drawdown = the drop from a peak in your equity to the next trough, expressed as a %.
- Account peaks at $108,000
- Drops to $102,000
- Drawdown = ($108,000 - $102,000) / $108,000 = 5.55%
Maximum drawdown = the largest such peak-to-trough drop ever recorded on the account.
It's measured on equity, not balance. Equity includes unrealized losses. This matters because if you have an open trade down $2,000, that's already part of your drawdown, even though you haven't closed it.
Two flavours: static vs trailing
This is the single most important distinction across prop firms.
Static (fixed) drawdown
The drawdown floor is set once and never moves.
Example: $100,000 account, 10% static drawdown. Floor = $90,000. Forever.
Hit $115,000 in profit, the floor is still $90,000. Hit $200,000 in profit, the floor is still $90,000. You have $25,000 of room above the original limit, and another $110,000 of room above current equity.
Used by: FTMO standard accounts, FunderPro, The5ers, most "evaluation" firms.
Trailing drawdown
The floor moves up with your equity peak, usually until you hit the initial balance + drawdown limit.
Example: $100,000 account, 10% trailing drawdown.
- Account at $100,000 → floor at $90,000
- Account rises to $105,000 → floor moves to $95,000
- Account rises to $108,000 → floor moves to $98,000
- Account drops back to $103,000 → floor STAYS at $98,000 (floor doesn't drop)
Trailing drawdown only ratchets up, never down. Once your peak hits initial balance + drawdown%, on most firms the trailing stops and it becomes static at the original limit.
Used by: APEX Trader Funding, TopstepTrader (futures), some FTMO aggressive accounts.
Trailing drawdown is significantly tighter than static. A $108K peak gives you only $10,000 of breathing room. A static account at $108K gives you $18,000.
Why drawdown decides who survives
Sequence of returns matters more than average return.
Strategy A: +20% per year average, max drawdown 15%. Strategy B: +12% per year average, max drawdown 6%.
On a prop account with 10% drawdown limit, Strategy A blows up the year it has its 15% drawdown. Strategy B never breaches. After 5 years, Strategy B has compounded; Strategy A is on its 5th replacement account.
The lesson: returns get reported by influencers. Drawdown gets reported by your prop firm when it terminates your account.
How much drawdown should you tolerate?
Risk-of-ruin math (simplified):
| Risk per trade | Win rate | Risk of 10% drawdown in 100 trades |
|---|---|---|
| 1% | 50% | ~22% |
| 1% | 55% | ~9% |
| 2% | 50% | ~76% |
| 2% | 55% | ~45% |
| 0.5% | 50% | <2% |
| 0.5% | 55% | <1% |
Conclusion: risk 0.5-1% per trade unless your win rate is verified >55% across 200+ trades. Higher risk only sounds better; the drawdown math says otherwise.
How prop firms calculate drawdown timing
Two different models:
End-of-day (EOD)
Drawdown is measured against your end-of-day equity at the firm's defined daily reset (usually 17:00 NY). Intraday spikes don't count, only the close.
Pro: holding through volatile moves doesn't bust you. Con: you have to time exits to avoid a bad close.
Intraday (live)
Drawdown is measured tick-by-tick. If your equity touches the floor for even one second, the account is breached.
Most prop firms use intraday for the daily 5% loss, EOD for the trailing/static max drawdown. Always check the small print.
The two-account drawdown stacking strategy
If you're funded on $100K, taking a second $50K challenge means you have $10K + $5K = $15K of combined drawdown capacity across both accounts.
Same strategy, half the size on each, halves your variance per account but keeps total capital exposure. Smart funded traders run 3-5 accounts at $25-50K each instead of one $200K, it smooths income and protects payouts.
How to track drawdown like a pro
Don't track it after the fact. Track it live, before every trade.
Three numbers you should know at all times:
- Distance to daily floor (in dollars)
- Distance to max drawdown floor (in dollars)
- Today's largest drawdown so far (intraday peak-to-trough)
If #1 is less than 2× your per-trade risk, you're one bad trade from a daily bust. Stop trading.
If #2 is less than 5× your per-trade risk, your account is on the brink. Cut size in half.
RB Trading Pro Journal displays all three live on the dashboard, plus a max drawdown sparkline so you can spot a building drawdown before it kills you. Risk-free for 30 days.
TL;DR
- Drawdown = peak-to-trough equity drop, measured on equity not balance
- Static drawdown = fixed floor (FTMO, FunderPro)
- Trailing drawdown = floor follows your peak up (APEX, Topstep)
- Risk 0.5-1% per trade unless your win rate is verified >55%
- Track distance to floor live, not after the fact
- Most account blow-ups are drawdown failures, not strategy failures
The strategy gets the credit when it works. Drawdown takes the account when it doesn't.
Stop guessing. Start tracking.
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