What Is Liquidation?

Why Liquidation Exists

Leveraged trading allows traders to control positions larger than their capital. A trader with $1,000 at 10x leverage controls a $10,000 position. If the market moves 10% against them, the loss equals their entire margin. Without liquidation, the trader would owe money to the exchange—a bad debt that the exchange or its counterparties must absorb.

Liquidation prevents this by closing positions before the loss exceeds the deposited collateral. It protects:

• The exchange from accumulating bad debt from underwater accounts.
• Other traders who are counterparties to the liquidated position.
• The insurance fund by closing positions while there is still margin remaining to cover fees and slippage.

In well-designed systems, liquidation is a last resort. Margin calls, auto-deleveraging, and progressive liquidation mechanisms help minimize the frequency and impact of forced closures.

How Liquidation Is Triggered

Liquidation is triggered when a position's margin ratio falls below the exchange's maintenance margin requirement. The key variables are:

• Initial margin – The collateral required to open a position. At 10x leverage, this is 10% of the position's notional value.
• Maintenance margin – The minimum collateral required to keep a position open, typically lower than the initial margin (e.g., 0.5% to 5% depending on the asset and exchange).
• Mark price – The reference price used to calculate unrealized PnL and margin ratios. Exchanges use mark price (rather than last traded price) to prevent manipulation-triggered liquidations.

The liquidation price can be calculated approximately as:

For a long position: Liquidation Price = Entry Price x (1 - 1/Leverage + Maintenance Margin Rate)

For a short position: Liquidation Price = Entry Price x (1 + 1/Leverage - Maintenance Margin Rate)

These are simplified formulas; actual liquidation prices also account for fees, funding payments, and other adjustments.

Types of Liquidation

Different exchanges use different liquidation mechanisms:

• Full liquidation – The entire position is closed at once. This is the simplest approach but can cause significant market impact for large positions.
• Partial liquidation – Only a portion of the position is closed, reducing leverage to bring the margin ratio back above the maintenance threshold. This is gentler and reduces market impact.
• Incremental liquidation – The position is closed in stages over a short period, with each step evaluated independently. This approach minimizes slippage.
• Auto-deleveraging (ADL) – When a liquidation results in a loss exceeding the available insurance fund, the exchange may forcibly close profitable positions on the other side to cover the shortfall. This is a last-resort mechanism used by venues like Hyperliquid.

Progressive and partial liquidation approaches are considered more sophisticated and trader-friendly, as they give positions a better chance of survival during temporary volatility spikes.

Liquidation Cascades

One of the most significant risks in leveraged markets is the liquidation cascade—a chain reaction where liquidations trigger further price movement, which triggers more liquidations:

• A price drop forces liquidation of overleveraged long positions.
• These liquidations are effectively forced sell orders that push the price lower.
• The lower price triggers liquidation of more long positions at higher margin levels.
• The cascade continues until enough positions are cleared or buying pressure absorbs the forced selling.

Liquidation cascades are more severe in markets with high open interest, concentrated leverage, and low organic liquidity. They are responsible for many of the rapid 10-20% crashes seen in crypto markets, often recovering partially once the cascade exhausts itself.

Exchange operators and risk teams monitor open interest concentrations and funding rates to anticipate potential cascade scenarios. Advanced risk engines implement circuit breakers and rate-limited liquidation to mitigate cascade severity.

Insurance Funds and Socialized Loss

When a liquidation occurs, the remaining margin after closing the position is added to the exchange's insurance fund. The insurance fund serves as a buffer against bad debt:

• Profitable liquidation – If the position is closed above the bankruptcy price (the price at which margin equals zero), the surplus goes to the insurance fund.
• Unprofitable liquidation – If the position cannot be closed above the bankruptcy price (due to slippage or rapid price movement), the insurance fund covers the deficit.
• Insurance fund depletion – If the insurance fund is insufficient, the exchange may use auto-deleveraging (ADL) or socialized loss, where remaining losses are spread across all profitable traders.

The size and growth of an exchange's insurance fund is an important indicator of its risk management health. Large, growing insurance funds suggest well-calibrated risk parameters and effective liquidation engines.

How to Avoid Liquidation

Traders can take several practical steps to reduce liquidation risk:

• Use lower leverage – Lower leverage means a wider gap between entry and liquidation price. A 3x leveraged position has roughly three times more room than a 10x position.
• Set stop-loss orders – Place stop-loss orders above (for longs) or below (for shorts) the liquidation price to exit before forced closure.
• Monitor margin ratio – Keep track of your margin ratio and add margin when it approaches dangerous levels.
• Use isolated margin for risky trades – Isolated margin limits liquidation damage to the assigned collateral, protecting your broader account.
• Avoid holding large positions during high-volatility events – FOMC decisions, earnings, protocol upgrades, and other catalysts increase the probability of rapid price moves.
• Diversify across uncorrelated positions – In cross margin mode, uncorrelated positions can offset each other, reducing account-level liquidation risk.