What happens during a forced liquidation on OKX?

OKX triggers forced liquidation when your margin balance falls below maintenance levels, closing positions automatically to prevent further losses.

Aug 13, 2025 at 11:36 am

Understanding Forced Liquidation on OKX

Forced liquidation on OKX occurs when a trader’s margin balance falls below the required maintenance margin level, triggering an automatic closure of their position by the exchange. This mechanism protects both the trader and the platform from incurring further losses that could exceed deposited collateral. When trading with leverage, especially in perpetual futures or margin trading, the risk of liquidation increases as price movements against the position reduce equity. The system continuously monitors the mark price of the asset to determine whether a position remains solvent.

• The liquidation price is the price level at which the position will be forcibly closed.
• This price is calculated based on the entry price, leverage used, fees, and funding rates.
• Once the mark price reaches the liquidation price, the forced liquidation process begins.

How OKX Determines the Liquidation Trigger

OKX uses the mark price, not the last traded price, to determine liquidation. The mark price is designed to prevent manipulation and reflects the fair market value of the contract, often derived from the spot price of the underlying asset plus a funding basis. This distinction is crucial because sudden spikes or drops in the order book do not immediately trigger liquidations.

• If the position margin drops to or below the maintenance margin requirement, liquidation is initiated.
• The maintenance margin is a small percentage of the position’s notional value, varying by asset and leverage.
• For example, a BTC/USDT perpetual contract might require a 0.5% maintenance margin at 10x leverage.

When the margin ratio (calculated as equity / required margin) reaches 100%, the system flags the position. As the ratio falls below 100%, the position enters the liquidation zone.

The Liquidation Process: Step-by-Step

Once a position is flagged for liquidation, OKX activates a structured process to close it in a controlled manner.

• The exchange first attempts to notify the user via push alerts or email, if enabled.
• A liquidation engine takes over, seeking to close the position at the best available market price.
• OKX may use a partial liquidation mechanism for large positions, closing portions incrementally to minimize market impact.
• If partial liquidation fails to stabilize the margin, the entire position is closed.

During this process, the trader loses access to manually close or adjust the position. The system prioritizes risk containment over user control at this stage.

Fees and Penalties After Liquidation

After a forced liquidation, users face financial consequences beyond the loss of their margin.

• A liquidation fee is charged, typically equivalent to the notional value of the position multiplied by a predefined fee rate (e.g., 0.1%).

• This fee compensates the insurance fund or auto-deleveraging (ADL) system.

• In extreme cases where the insurance fund is insufficient, OKX may activate ADL, where profitable counterparties are automatically reduced to cover losses.

• The insurance fund absorbs most liquidation losses, protecting the system from insolvency.

• ADL events are rare and occur only during high volatility when liquidations happen at unfavorable prices.

Users should note that losses can exceed initial margin in extreme scenarios, although OKX aims to prevent this through robust risk controls.

How to Monitor and Avoid Forced Liquidation

Traders can take proactive steps to avoid forced liquidation by monitoring key metrics and adjusting their strategy.

• Use the liquidation price indicator visible in the OKX trading interface.
• Enable price alerts for both entry and liquidation levels.
• Adjust leverage to lower levels to increase the buffer against price swings.

Risk management tools available on OKX include:

• Stop-loss orders to limit downside exposure.
• Take-profit orders to secure gains before volatility spikes.
• Position size calculators to estimate margin requirements and liquidation thresholds.

Regularly checking the account health section ensures awareness of current margin levels and potential risks.

Real-Time Example: BTC/USDT Perpetual Contract

Consider a trader opening a long position on BTC/USDT with 5 BTC at $60,000, using 20x leverage.

• The notional value is $300,000.
• The initial margin is $15,000 (5% of notional).
• The maintenance margin is 0.5%, or $1,500.
• The liquidation price is calculated at approximately $58,500, depending on fees and funding.

If the BTC mark price drops to $58,500, the system triggers liquidation. The position is closed at market, potentially incurring slippage. The user loses most, if not all, of the $15,000 margin and pays a liquidation fee.

Frequently Asked Questions

What is the difference between mark price and last traded price in liquidation?
The mark price is used to prevent unfair liquidations due to market manipulation or flash crashes. It is derived from external indices and funding rates, while the last traded price reflects actual trades on the order book. OKX uses the mark price to determine liquidation to ensure fairness.

Can I recover funds after a forced liquidation?

No, once a position is liquidated, the margin is lost. Any remaining balance after fees is returned to the wallet. There is no recovery process for liquidated positions, as the closure is final and irreversible.

Does OKX notify me before liquidation?

Yes, OKX provides real-time alerts via the app and email if notifications are enabled. However, during rapid market movements, the time between warning and execution may be extremely short, sometimes just seconds.

What happens to my position during ADL?

If auto-deleveraging is triggered, profitable counterparties with high leverage and low equity are selected to reduce their positions. This only affects traders on the opposite side of the market and is based on a ranking system involving leverage and profitability.