Skip to main content

​
What is ADL (Auto-Deleveraging) in Crypto Futures? Why It Happens and Why NSE/BSE Don’t Have ADL

If you’ve traded crypto perpetual futures on exchanges like Bybit, Binance, OKX, or Bitget, you may have come across the term ADL (Auto-Deleveraging). For many traders, receiving an ADL notification can be confusing, especially if their position was profitable. Unlike a normal liquidation, ADL can close your position even when you are making money. In this guide, we’ll explain what ADL is, why crypto exchanges use it, how it works, and why traditional stock exchanges like the National Stock Exchange (NSE) and Bombay Stock Exchange (BSE) do not require an ADL mechanism.

​
What is ADL in Crypto Trading?

ADL (Auto-Deleveraging) is a risk management mechanism used by cryptocurrency derivatives exchanges to protect the platform when a liquidated trader’s losses cannot be fully covered. Instead of allowing the exchange to suffer a loss, the system automatically reduces or closes positions held by traders on the opposite side of the market—typically those with the highest profits and leverage. In simple terms:
ADL is a last-resort safety mechanism that transfers risk from bankrupt positions to profitable opposing traders when the insurance fund is insufficient.

​
Why Does ADL Exist?

Crypto futures markets allow traders to use very high leverage, sometimes as high as:
  • 25x
  • 50x
  • 100x
  • 125x
With such high leverage, even a small price movement can completely wipe out a trader’s margin. During periods of extreme market volatility, a liquidated trader’s position may not be closed quickly enough, causing losses greater than the trader’s remaining collateral. If many traders are liquidated simultaneously, the exchange could face a deficit. ADL exists to prevent that deficit from threatening the stability of the trading platform.

​
Understanding ADL with an Example

Imagine two traders: Trader A
  • Long 1 BTC
  • Entry Price: $100,000
  • 100x leverage
Trader B
  • Short 1 BTC
  • Entry Price: $100,000
Suppose BTC suddenly crashes by 15% within seconds. Trader A’s position is liquidated. However, because the market moved so quickly, the liquidation engine could only close the position after additional losses had already occurred. Now imagine:
  • Trader A lost $15,000
  • Trader A only had $1,000 in collateral
The exchange now faces a $14,000 shortfall. Normally, the exchange first uses its Insurance Fund to absorb the deficit. If the insurance fund cannot fully cover the loss, the exchange may trigger ADL, reducing profitable positions on the opposite side—in this example, Trader B’s short position.

​
How Does ADL Work?

Although each exchange has its own implementation, the general process is similar:
  1. A highly leveraged trader is liquidated.
  2. The liquidation engine attempts to close the position in the market.
  3. The insurance fund covers any remaining loss.
  4. If the insurance fund is insufficient, ADL is triggered.
  5. Profitable traders on the opposite side are ranked based on profit and leverage.
  6. Eligible positions are automatically reduced or closed.
The trader whose position is auto-deleveraged receives the realized profit up to that point, but the position is closed earlier than intended.

​
Which Traders Are Most Likely to Be ADL’d?

Most exchanges prioritize traders using an internal ranking system based on factors such as:
  • High unrealized profits
  • High leverage
  • Large position sizes
This approach is intended to reduce systemic risk while minimizing disruption to the broader market.

​
Is ADL the Same as Liquidation?

No. ADL and liquidation are different concepts.

​
What is an Insurance Fund?

Most crypto derivatives exchanges maintain an Insurance Fund. Its purpose is to absorb losses when liquidated positions cannot be closed at their bankruptcy price. The insurance fund is designed to:
  • Reduce the likelihood of ADL.
  • Protect traders from socialized losses.
  • Improve market stability during periods of high volatility.
A larger and better-funded insurance pool generally means ADL events are less frequent.

​
Why Does ADL Happen More During High Volatility?

ADL is most likely during events such as:
  • Flash crashes
  • Sudden market rallies
  • Major economic announcements
  • Exchange-wide liquidations
  • Extremely low liquidity
During these periods:
  • Prices move rapidly.
  • Large orders may not find immediate counterparties.
  • Liquidation engines may execute at worse prices.
  • Insurance funds can come under pressure.

​
Why Don’t NSE and BSE Have ADL?

Unlike many crypto derivatives exchanges, traditional stock and derivatives markets such as the National Stock Exchange (NSE) and Bombay Stock Exchange (BSE) operate within a highly regulated market structure that includes multiple layers of risk management. As a result, they do not require an Auto-Deleveraging system. Some of the key reasons include:

​
1. Investor Protection Fund (IPF)

Indian exchanges operate under a regulatory framework that includes the Investor Protection Fund (IPF). The IPF is designed to compensate eligible investors in specific situations involving trading members, such as broker defaults, subject to applicable rules and limits. While the IPF is not a replacement for margin requirements or a guarantee against trading losses, it is one part of the broader investor protection framework that does not exist in the same way on many crypto exchanges.

​
2. Daily Mark-to-Market Settlement

Profits and losses in futures positions are settled frequently through mark-to-market processes. This helps prevent losses from accumulating unchecked over long periods.

​
3. Strict Margin Requirements

Indian exchanges impose:
  • Initial Margin
  • Exposure Margin
  • Extreme Loss Margin (ELM)
  • Additional margins when required by regulators
These measures significantly reduce the chance of accounts becoming deeply negative.

​
4. Price Circuits and Market-Wide Circuit Breakers

NSE and BSE use price bands and market-wide circuit breakers that temporarily halt trading during extreme price movements. These mechanisms allow market participants time to reassess information, helping reduce panic-driven trading and giving clearing systems additional time to manage risk. Crypto markets generally trade 24×7 without equivalent market-wide circuit breakers across the entire ecosystem.

​
5. Central Clearing Corporations

Trades executed on NSE and BSE are guaranteed by regulated clearing corporations. These clearing corporations manage counterparty risk through:
  • Margin collection
  • Settlement guarantees
  • Default management procedures
  • Clearing member supervision
This regulated clearing infrastructure greatly reduces the need for an ADL-style mechanism.

​
Crypto Exchanges vs NSE/BSE

​
Can Traders Avoid ADL?

While no trader can completely eliminate the possibility of ADL, the risk can often be reduced by:
  • Using lower leverage.
  • Avoiding oversized positions.
  • Monitoring exchange ADL indicators (where available).
  • Trading on exchanges with strong liquidity and well-funded insurance funds.
  • Diversifying positions rather than concentrating risk in a single highly leveraged trade.

​
Frequently Asked Questions (FAQs)

​
Does ADL mean the exchange stole my profits?

No. ADL is a predefined risk management mechanism described in the exchange’s derivatives rules. If your position is auto-deleveraged, the closed portion is typically settled at the applicable execution price according to the exchange’s methodology.

​
Can profitable positions be closed because of ADL?

Yes. Unlike liquidation, ADL can reduce or close profitable positions if they are selected by the exchange’s ranking system during an extreme market event.

​
Do all crypto exchanges use ADL?

Many perpetual futures exchanges have an ADL mechanism, but the implementation, ranking logic, and frequency differ between platforms.

​
Can ADL happen in spot trading?

No. ADL is associated with leveraged derivatives trading rather than spot markets.

​
Why don’t stock exchanges need ADL?

Traditional exchanges rely on a combination of regulated margin systems, central clearing corporations, circuit breakers, settlement processes, and investor protection mechanisms to manage market risk, making an ADL mechanism unnecessary.

​
Conclusion

Auto-Deleveraging (ADL) is a unique feature of many crypto derivatives exchanges, designed to protect the exchange and the broader market when extreme volatility overwhelms normal liquidation and insurance mechanisms. Although ADL can be frustrating for profitable traders, it plays an important role in maintaining market stability during rare but severe market events. Traditional exchanges such as NSE and BSE do not use ADL because they operate within a mature regulatory framework that includes regulated clearing corporations, strict margin requirements, investor protection mechanisms, and circuit breakers. These systems collectively reduce systemic risk long before an ADL-style intervention would ever become necessary. Understanding how ADL works helps traders choose appropriate leverage, manage risk more effectively, and better interpret the safeguards built into different trading venues.