How to calculate liquidation price on Bybit?

Understanding Liquidation Price Mechanics

1. Liquidation price is the specific market level at which a leveraged position on Bybit ceases to meet margin requirements and triggers automatic closure by the exchange.

2. This value is dynamically recalculated in real time based on open interest, leverage ratio, entry price, and current funding rate adjustments.

3. The calculation excludes external price feeds and relies solely on Bybit’s internal marking methodology tied to its five-source spot index.

4. Positions using isolated margin mode compute liquidation price independently per contract, while cross-margin positions share equity across all open trades.

5. A 0.05% slippage buffer is applied during execution to account for order book depth limitations at the exact liquidation threshold.

Role of Mark Price in Risk Determination

1. Bybit’s mark price integrates weighted median values from Binance, OKX, Bybit, Kraken, and Coinbase spot markets with a 15-second rolling window.

2. Funding rate divergence correction is applied every 8 hours to anchor the mark price toward fair value, preventing artificial manipulation during low-volume intervals.

3. When the mark price breaches the liquidation threshold, the system initiates forced liquidation regardless of last traded price or order book bid/ask spread.

4. During flash crash events, mark price updates lag by up to 2.3 seconds due to consensus validation across data sources, creating temporary misalignment with latest price.

5. Arbitrage bots actively monitor this lag to exploit short-term discrepancies between mark and spot prices, increasing volatility near critical thresholds.

Margin Mode Impacts on Calculation Accuracy

1. In isolated margin mode, liquidation price is derived exclusively from position size, leverage, and initial margin without referencing other open trades.

2. Cross-margin mode aggregates total account equity across all perpetual and futures contracts, causing cascading liquidations when one position fails.

3. Unified trading account mode introduces inter-asset collateral valuation—BTC holdings can offset ETH position margin deficits only if both assets are held within the same unified balance.

4. Auto-deleveraging triggers when cross-margin equity falls below maintenance margin by more than 12%, initiating priority-based counterparty position closures starting from lowest profit-to-risk ratio.

5. Negative balance protection caps losses at deposited margin but does not prevent liquidation initiation once equity hits zero.

Real-Time Data Sources and Validation Layers

1. CoinGlass API delivers live liquidation heatmaps showing cluster density at specific price bands across BTC, ETH, and SOL perpetual markets.

2. Bybit’s public transparency dashboard publishes daily reserve proofs using Merkle Tree hashing, enabling independent verification of solvency against outstanding user positions.

3. Funding rate history feeds into liquidation models through exponential moving average weighting over the past 72 hours to anticipate directional bias shifts.

4. Order book depth snapshots at 100-pip intervals feed risk engines that adjust maintenance margin ratios dynamically during high-volatility regimes.

5. On-chain settlement logs from Copper.co custody confirm collateral backing for sUSDe positions, isolating DeFi exposure from centralized exchange insolvency scenarios.

Frequently Asked Questions

Q1: Does Bybit use last price or mark price to trigger liquidations?Bybit uses mark price exclusively for liquidation determination. Last price serves only as a reference for trade execution and PnL display.

Q2: Can a position be liquidated even if the mark price never reaches the calculated liquidation level?Yes. If the mark price touches or crosses the liquidation threshold—even for a single tick—the system executes immediate closure without requiring sustained breach.

Q3: How does funding rate impact the liquidation price formula?Funding rate adjustments modify the effective entry price used in margin calculations, shifting the liquidation point upward for long positions and downward for shorts during positive funding periods.

Q4: Why do identical positions on different exchanges show divergent liquidation prices?Divergence arises from distinct mark price methodologies, margin requirement structures, and maintenance margin percentages applied by each platform’s risk engine.