Per-position leverage lies by omission
Say you're running $1,000 of account equity in cross margin, and you open three positions over the course of a day:
- BTC long — $2,000 notional
- ETH long — $2,000 notional
- SOL long — $3,000 notional
Each one, sized against what you mentally budgeted for it, felt like a 2x or 3x position. None of them individually would trip a "you're overleveraged" instinct. But your exchange isn't tracking three separate accounts — it's tracking one pool of $1,000 equity against $7,000 of combined notional. That's 7x effective leverage, the number our effective leverage calculator gives you the instant you plug in total position size and total equity: effective leverage = total notional ÷ equity.
Nobody sets out to run 7x. It accumulates one "reasonable-looking" position at a time, because the leverage slider on each trade only ever shows you that trade in isolation.
What 7x actually means for wipeout distance
The liquidation-relevant move is roughly 100 ÷ effective leverage, before maintenance margin and fees make it slightly worse. At 7x, that's 100 ÷ 7 = 14.3%. If BTC, ETH and SOL all move against you together — which is exactly what happens in a risk-off event, since long crypto positions are highly correlated — a 14.3% drawdown across the book wipes the account. That's a single bad day in crypto, not a tail event.
| Effective leverage | Move that wipes equity | RT fee (Bybit, 0.11%) | RT fee (OKX/Binance, 0.10%) |
|---|---|---|---|
| 1x | ~100% | 0.11% | 0.10% |
| 2x | ~50% | 0.22% | 0.20% |
| 4x | ~25% | 0.44% | 0.40% |
| 7x (this example) | ~14.3% | 0.77% | 0.70% |
| 10x | ~10% | 1.10% | 1.00% |
| 20x | ~5% | 2.20% | 2.00% |
Round-trip fee = open + close, both taker, on the total notional across all positions. Bybit's tier-0 taker is 0.055% per side (0.11% round trip); OKX and Binance sit at 0.05% per side (0.10% round trip) — the same rates our exchange fee comparison verified. The wipeout move is arithmetic (100 ÷ effective leverage), not a backtest, and ignores maintenance margin and funding, which only make the real number worse.
The fee bill scales with the same number
Fees are charged on notional, not equity — the same reason a $100 position at 20x costs more in fees than a $100 position at 2x. That means the fee cost of managing your whole book also scales with effective leverage, not with how many positions you have or how "reasonable" each one felt. At 1x effective leverage, one round trip across the account costs about 0.11% of equity on Bybit. At 7x, the exact same round trip — open and close everything once — costs 0.77% of equity, seven times as much, purely because the total notional is seven times larger against the same equity base. Rebalance that book twice a week and you've handed over roughly 6% of equity in fees a month, before the market has done anything at all.
This is the same mechanism our fee-drag report found for high-frequency scalping — fees charged on notional, not margin — except here the notional inflates from stacking positions instead of from one aggressive leverage setting. The slider on any single trade can read "3x" and still be lying about what the fee and liquidation math actually charges you.
What I changed
I now run total notional against total equity through the effective leverage calculator before opening a third or fourth position, not after. If effective leverage is already past 3x, the next trade is a size problem before it's a market call — the position gets smaller, or an existing one gets closed first. Most professional desks cap effective leverage in the 1-3x range for exactly this reason: it's the number that determines both how far a correlated move has to travel to wipe you out, and how much of your equity fees quietly eat on the way.
The short version
- Effective leverage = total notional across all positions ÷ total equity — not the per-position leverage your exchange shows.
- Three "tame" 2-3x positions summed to 7x effective leverage in this example, purely from sharing the same account equity.
- 7x effective leverage means a 14.3% correlated move wipes the account — a normal risk-off day in crypto, not a tail event.
- Fees scale with the same number: a round trip across the whole book at 7x effective leverage costs about 7x what it costs at 1x, as a share of equity.
→ Effective leverage calculator · → Liquidation calculator · → Exchange fee comparison · → Risk of ruin
FAQ
What is effective leverage and how is it different from the leverage my exchange shows?
Your exchange shows leverage per position: the multiple you selected when you opened that one trade. Effective leverage is the sum of every open position's notional value divided by your total account equity. Three positions each opened at a modest 2-3x can add up to 7x or higher effective leverage once you sum them against the same shared equity, even though no single position's settings look aggressive.
How much adverse move wipes an account at a given effective leverage?
Roughly 100 divided by the effective leverage number, before maintenance margin and fees are subtracted. At 7x effective leverage that is about 14.3%. At 4x it is 25%. At 20x it is only 5%. This applies to the combined move across all open positions, which matters most when they are correlated (for example, all long during a risk-off event).
Do fees scale with effective leverage too, not just liquidation risk?
Yes. Taker fees are charged on notional value, not on equity or margin. If your total notional across all positions is 7x your equity, one round trip across the whole book costs roughly 7 times a single 1x position's fee, as a share of your equity. At a 0.11% round-trip taker rate, 1x effective leverage costs about 0.11% of equity per round trip; 7x effective leverage costs about 0.77%.
What effective leverage do experienced traders actually target?
Most professional risk desks target 1-3x effective leverage across the whole account, reserving higher per-position leverage settings for smaller allocations of that same equity rather than stacking large notional on top of large notional. The number that matters for survival is the sum of all open notional divided by total equity, not any single position's leverage slider.