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What Is Liquidation Price?

Updated May 2026 — NYXANCE Glossary

Liquidation price is the mark price level at which your perpetual futures position is automatically closed by the exchange because your margin balance has fallen to the maintenance margin threshold. It is the price you never want to see on your trading interface — once the mark price touches your liquidation price, the engine takes over and closes (or reduces) your position, and your margin is consumed.

Understanding liquidation price before opening any leveraged trade is a fundamental risk management practice.

How Liquidation Price Is Calculated

The formula differs slightly between long and short positions, but the logic is the same: liquidation occurs when remaining equity equals maintenance margin.

Long Position Liquidation Price

Liquidation Price = Entry Price × (1 - Initial Margin Rate + Maintenance Margin Rate)

For a simpler approximation often used in practice:

Liquidation Price ≈ Entry Price × (1 - 1/Leverage + Maintenance Margin Rate)

Example:

• BTC long at $67,000 entry price
• Leverage: 20×
• Initial margin: 5% → $3,350 per BTC
• Maintenance margin rate: 0.5%

Liquidation Price ≈ $67,000 × (1 - 0.05 + 0.005) = $67,000 × 0.955 ≈ $63,985

A 4.5% adverse move liquidates this position.

Short Position Liquidation Price

Liquidation Price ≈ Entry Price × (1 + 1/Leverage - Maintenance Margin Rate)

Example:

• BTC short at $67,000 entry
• Leverage: 10×

Liquidation Price ≈ $67,000 × (1 + 0.10 - 0.005) = $67,000 × 1.095 ≈ $73,365

A 9.5% upward move liquidates this position.

Mark Price vs. Last Price for Liquidation

Liquidation is triggered by mark price, not last traded price. This distinction is critical.

Mark price is a composite fair value derived from multiple spot exchange price feeds (typically a weighted median or time-weighted average). It is more resistant to momentary wick spikes and wash trades than last price.

This means:

• A flash crash to $60,000 that lasts 3 seconds might not trigger your liquidation if the mark price only touches $63,500
• Conversely, if a large block trade on your exchange alone doesn't move the broader market, you won't be liquidated on that anomaly

See: What Is Mark Price vs Index Price?

The Liquidation Engine Process

When your margin balance hits the maintenance margin level, the following sequence occurs:

1. Warning: Most exchanges alert you at ~80% margin utilization.
2. Partial liquidation (large positions): For positions over a certain size, the exchange may reduce position size in steps to bring margin utilization back below the threshold.
3. Full liquidation: If partial reduction is insufficient, the entire position is liquidated at the bankruptcy price.
4. Insurance fund: If the position is liquidated for less than the bankruptcy price (i.e., slippage), the insurance fund absorbs the difference. If the insurance fund is depleted, some exchanges apply auto-deleveraging (ADL), closing profitable positions on the other side.

How to Protect Yourself from Liquidation

1. Use Stop-Loss Orders

A stop-loss at a price above your liquidation level gives you control over your exit. You decide to exit at -5%; the exchange doesn't force you out at -9%.

2. Reduce Leverage

The single most effective tool. At 10× leverage, you need a 10% move to face liquidation (minus maintenance margin buffer). At 50×, only a 2% move triggers it.

3. Add Margin (Isolated Mode)

In isolated margin mode, you can manually add more USDT to a position to push the liquidation price further away.

4. Monitor Mark Price Continuously

Liquidation is a mark-price event. Watch the mark price, not the last traded price, especially during volatile sessions.

5. Account for Funding Costs

In cross margin mode, accumulated funding payments reduce your margin balance over time and can move your effective liquidation price closer to spot.

Liquidation Price in Cross vs Isolated Margin

Common Liquidation Patterns

Cascading Liquidations

When BTC drops sharply, it triggers long liquidations. Those forced sell orders push price down further, triggering more long liquidations in a self-reinforcing loop. Open interest levels around key price areas signal where large clusters of liquidations may be lurking.

Long Squeeze

A rapid, violent upward move that liquidates clustered short positions, which in turn generates forced buy orders that push price higher still.

Related Concepts

• What Is Maintenance Margin?
• What Is Initial Margin Requirement?
• What Is Mark Price vs Index Price?
• What Is Cross vs Isolated Margin?

NYXANCE displays your real-time liquidation price in the position panel and sends push notifications when margin utilization exceeds 80%. Open an account.

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