The Core Concept
Liquidation in crypto futures is the forced closing of your leveraged position by the exchange when your margin balance falls below the required maintenance margin (MMR). In simple terms: you've lost too much money, and the exchange steps in to close your position so you don't lose more than you have.
Think of it like a margin call in traditional finance, but much faster and more ruthless. In crypto markets that trade 24/7, liquidation can happen in seconds during volatile price swings.
How Does Liquidation Work Step by Step?
- You open a leveraged position — say 10x long on BTC at $100,000. Your margin is $10,000, controlling $100,000 worth of BTC.
- The price moves against you — BTC drops to $95,000. Your unrealized loss is $5,000. Your margin is now $5,000.
- Your margin ratio drops — The exchange calculates: current margin / position value = $5,000 / $95,000 = 5.26%. If the MMR requirement is 6.5%, you're below.
- Liquidation is triggered — The exchange forcibly closes your position at the liquidation price. Your $10,000 margin is consumed to cover losses.
- You lose your entire margin — In most cases, you lose 100% of your initial margin. There is no debt to the exchange.
The Liquidation Formula
Liquidation Price (Long) = Entry Price × (1 - MMR - Fee Rate)
For isolated margin, the formula accounts for your specific position parameters. For cross margin, it considers your entire account balance.
What Happens After Liquidation?
- Your position is immediately closed at the liquidation price
- Your entire initial margin is lost
- The exchange keeps the liquidation fee (typically 0.1-0.5% of position value)
- You receive no further losses beyond your margin
- Your remaining account balance (cross margin) is unaffected for other positions
How to Avoid Liquidation
- Use lower leverage — 3x-5x is much safer than 50x-100x
- Set stop-loss orders — Exit before the exchange forces you out
- Monitor MMR requirements — Know your liquidation price before entering
- Keep reserve margin — Don't use 100% of your available margin
- Use isolated margin for high-risk trades — Limits your exposure to one position