Determinants of Liquidation Price
The liquidation price depends on three factors: entry price, leverage multiple (higher leverage narrows the distance), and maintenance margin rate (which varies by exchange and tier). On Binance, the maintenance margin rate rises in tiers based on notional position size. For example, BTC-USDT positions under 50,000 USDT require 0.4% maintenance margin, but those exceeding 5,000,000 USDT require 5%. This tiered structure effectively caps the maximum usable leverage for larger positions.
Cascade Liquidation Mechanics
When a highly leveraged position is liquidated, it hits the order book as a market order, pushing price further in the direction of the loss (downward for long liquidations). This triggers other positions' liquidation thresholds in sequence. On May 19, 2021, BTC fell roughly 30% from $40,000 to $30,000 while approximately $8 billion in long positions were liquidated within a single day. Thin liquidity amplifies slippage, accelerating the feedback loop of liquidation cascades.
Insurance Fund and ADL
If a liquidation order executes at a price more favorable than the bankruptcy price (negative margin), the surplus flows into the Insurance Fund. Conversely, when the Insurance Fund cannot absorb losses, Auto-Deleveraging (ADL) activates, forcibly reducing positions of profitable counterparties. ADL means that even traders on the winning side face risk of sudden position reduction without prior notice.
Managing Liquidation Risk
Practical methods to avoid liquidation include: (1) capping effective leverage through position-sizing rules (e.g., risking no more than 1-2% of account per trade), (2) maintaining margin buffers to push the liquidation price further away, (3) placing stop-loss orders well before the liquidation price, and (4) distributing positions across multiple exchanges to reduce single-venue failure risk. Given the elevated volatility of crypto assets, substantially wider safety margins are required compared to traditional finance.