Liquidation

Liquidation is the process by which an exchange automatically closes a trader's position because the margin (collateral) supporting that position has fallen below a mandatory threshold, known as the Maintenance Margin.

Why It Occurs

In leveraged trading, you are essentially borrowing capital from the exchange or its liquidity providers (like HLP) to open a position larger than your deposit. If the market moves against you, your initial deposit acts as a buffer. When that buffer is almost exhausted, the exchange must close the position to ensure it can pay back the borrowed funds.

How Hyperliquid's Liquidation Engine Works

Hyperliquid uses a highly efficient, decentralized liquidation model. Unlike centralized exchanges where the exchange itself typically profits from liquidations, on Hyperliquid, the HLP (Hyperliquid Liquidity Provider) vault acts as the automated counterparty. When a position reaches its liquidation price, the HLP vault "buys" the failing position at a slight discount. This provides the necessary liquidity to close the trade while ensuring the protocol remains solvent.

Liquidation Price Formula

The price at which your position will be forcibly closed is known as the Liquidation Price. For a long position, the formula is:

LP = Entry Price × (1 - 1/Leverage + MMR)

Example: If you enter a long position on BTC at $50,000 with 10x leverage and an MMR (Maintenance Margin Rate) of 0.5%:

• 1/Leverage = 0.10 (10%)
• MMR = 0.005 (0.5%)
• LP = $50,000 × (1 - 0.10 + 0.005) = $50,000 × 0.905 = $45,250

Partial vs Full Liquidation

Hyperliquid implements a Partial Liquidation system to reduce the impact on the trader. If a large position approaches liquidation, the engine may only close enough of the position to bring the remaining margin back above the maintenance requirement. This "de-risking" process can often save a portion of the trader's collateral that would otherwise be lost in a full liquidation event.

Liquidation Cascades

A liquidation is essentially a forced market order. If a large number of longs are liquidated at once, they all become "market sellers," which pushes the price down further. This can trigger additional liquidations at lower prices, creating a Liquidation Cascade. These cascades are the primary cause of extreme "wicking" behavior in crypto markets. You can learn more about this in our guide on How Liquidation Cascades Work.

The Insurance Fund & ADL

Exchanges use an Insurance Fund to prevent "socialized losses." If a position is closed at a loss greater than the collateral, the Insurance Fund covers the deficit. In the extreme event that the Insurance Fund is exhausted, ADL (Auto-Deleveraging) triggers, where the most profitable traders' positions are forcibly closed to maintain system solvency.

Historical Context: The JELLY Incident

In March 2025, the Hyperliquid protocol faced a systemic threat from a manipulated liquidation cascade on the JELLY pair. This event proved that while the liquidation engine is robust, manual validator intervention may be required to protect the protocol's liquidity providers (HLP) from toxic manipulation. Read the JELLY Incident Case Study for a full analysis.