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. Free for 7 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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