What Is Liquidation?
Liquidation is the forced closing of a leveraged trading position by the exchange when losses erode the margin (collateral) to a critical threshold. The exchange sells the position at market price to recover the borrowed funds, and the trader loses most or all of their deposited margin.
How Liquidation Works
Every leveraged position has a liquidation price — the price at which your remaining margin can no longer cover the position's losses. For a 10x long on BTC at $65,000 with $1,000 margin, the liquidation price is approximately $58,500 (10% below entry). If BTC drops to that level, the exchange forcibly closes the position.
Why It Matters for Traders
Liquidations are not just individual events — they're market-moving forces. Large clusters of liquidations at similar price levels create "liquidation cascades" where forced selling drives price further into more liquidation levels, creating a chain reaction. Tracking liquidation heatmaps reveals where these clusters sit, enabling traders to anticipate volatile moves and avoid being on the wrong side.
How It Works on CEX Perps
On centralized perpetual futures venues, liquidation shows up in the position panel, the funding timer, or the liquidation engine rather than as a separate product. Traders usually check it next to mark price, margin mode, and open interest so they do not size a trade from last price alone.
Example numbers only (not a live quote): if you hold a $10,000 notional long with 5x leverage, your initial margin is about $2,000. A move against you of roughly 20% of that notional can push the position near maintenance margin depending on the venue formula. Always read the venue's own liquidation rule before you size.
Formula and Worked Example
Use this only as a labeled example. It is not a live market print.
- Notional = coin size × mark price.
- Initial margin ≈ notional ÷ leverage.
- Distance to liquidation depends on maintenance margin, fees, and whether you use cross or isolated margin.
Example: 0.1 BTC long, mark $60,000, leverage 10x → notional $6,000, initial margin about $600. If maintenance margin is near 0.5% of notional, a modest adverse move can close the trade even when your thesis is still intact.
Common Mistakes
- Treating a single print of liquidation as a trade signal without checking funding, open interest, and your liquidation price.
- Mixing venue conventions (coin-margined vs USDT-margined, cross vs isolated) and reading the wrong mark.
- Copying example numbers from a glossary into live size without checking the current book depth and fee schedule.
- Ignoring related terms that change the meaning of the print on a given day.
