What Is Auto-Deleveraging?
Auto-deleveraging (ADL) is a last-resort risk management mechanism used by derivatives exchanges when a bankrupt position cannot be liquidated at the bankruptcy price and the insurance fund is insufficient to cover the loss. In ADL, the exchange forcibly closes profitable positions on the opposite side to cover the deficit.
How Auto-Deleveraging Works
ADL priority is determined by a ranking system: traders with both the highest profit and the highest leverage are deleveraged first. Most exchanges display an ADL indicator that shows your position in the queue. During extreme volatility events (flash crashes, cascading liquidations), ADL can trigger for many traders simultaneously.
Why It Matters for Traders
ADL is one of the most frustrating events in crypto trading — your profitable, correctly-positioned trade gets forcibly closed because another trader's loss exceeded the exchange's capacity. To minimize ADL risk: trade on exchanges with large insurance funds, avoid using maximum leverage even when profitable, and reduce position sizes during periods of extreme market stress.
How It Works on CEX Perps
On centralized perpetual futures venues, auto-deleveraging shows up in the position panel, the funding timer, or the liquidation engine rather than as a separate product. Traders usually check it next to mark price, margin mode, and open interest so they do not size a trade from last price alone.
Example numbers only (not a live quote): if you hold a $10,000 notional long with 5x leverage, your initial margin is about $2,000. A move against you of roughly 20% of that notional can push the position near maintenance margin depending on the venue formula. Always read the venue's own liquidation rule before you size.
Formula and Worked Example
Use this only as a labeled example. It is not a live market print.
- Notional = coin size × mark price.
- Initial margin ≈ notional ÷ leverage.
- Distance to liquidation depends on maintenance margin, fees, and whether you use cross or isolated margin.
Example: 0.1 BTC long, mark $60,000, leverage 10x → notional $6,000, initial margin about $600. If maintenance margin is near 0.5% of notional, a modest adverse move can close the trade even when your thesis is still intact.
Common Mistakes
- Treating a single print of auto-deleveraging as a trade signal without checking funding, open interest, and your liquidation price.
- Mixing venue conventions (coin-margined vs USDT-margined, cross vs isolated) and reading the wrong mark.
- Copying example numbers from a glossary into live size without checking the current book depth and fee schedule.
- Ignoring related terms that change the meaning of the print on a given day.
