Isolated vs Cross Margin: Which Should You Use?
July 2026 · 5 min read
When you open a futures position on Binance, Bybit, or OKX, the first choice you make is the margin mode. Isolated and cross margin aren't just cosmetic settings — they determine how much of your account can be lost on a single position and how your liquidation price behaves.
At a Glance
Isolated Margin — How It Works
You allocate a specific amount — say $500 from a $10,000 account — as margin for a single position. That $500 is the most you can lose on this trade. If the position's losses consume the $500, it's liquidated. The remaining $9,500 is untouched.
$10,000 account — $500 allocated to isolated BTC long
Isolated Margin Liquidation Price (Long)
Liq Price = Entry × (1 − 1/Leverage + MMR)
MMR = Maintenance Margin Rate (typically 0.5% on major pairs at Binance/Bybit/OKX). This formula gives a fixed, pre-calculable liquidation price.
Cross Margin — How It Works
Your entire available account balance acts as collateral for the position. The position won't be liquidated as long as there's balance remaining in your account. This gives the position more room to breathe — but it also means losses draw from your entire account, not just a designated slice.
$10,000 account — entire balance is collateral in cross margin
Side-by-Side Comparison
| Isolated | Cross | |
|---|---|---|
| Collateral | Allocated amount only | Full account balance |
| Max loss per trade | Allocated margin | Up to full account |
| Liquidation price | Fixed, pre-calculable | Dynamic, changes with balance |
| Buffer against liquidation | Only allocated margin | All available balance |
| Multiple positions | Each position is independent | Positions share the same pool |
Adding Margin to an Isolated Position
If you add extra margin to an existing isolated position, the liquidation price moves further away (for a long: lower; for a short: higher), giving the position more room. The effective leverage decreases.
Approximate new liquidation price after adding margin (long)
Effective Leverage = Position Value ÷ (Original + Added Margin)
New Liq Price ≈ Entry × (1 − 1/Eff. Leverage + MMR)
Exact behavior varies by exchange. Verify in your exchange's position panel.
Summary
Isolated margin gives you a hard cap on potential loss and a pre-calculable liquidation price. Cross margin provides more buffer — but at the cost of exposing your entire account balance. Neither mode is universally superior; the right choice depends on your position sizing discipline, risk tolerance, and whether you're managing multiple simultaneous positions. Always confirm exact mechanics in your exchange's official documentation.