Crypto Gloss

Margin Call

A margin call occurs when a trader’s account equity drops below the maintenance margin requirement, triggering a demand for additional collateral to keep the position open. If the trader fails to deposit more funds, the exchange will partially or fully close the position through liquidation. Margin calls are a critical risk management mechanism in margin trading.

How It Works

When opening a leveraged position, traders must maintain a minimum collateral level called the maintenance margin. As the trade moves against them, unrealized losses reduce account equity. Once equity falls below the maintenance threshold, a margin call is issued.

The process typically follows this sequence:

  1. Position opened — Trader posts initial margin (e.g., $1,000 at 10x leverage for a $10,000 position).
  2. Price moves against trader — Unrealized losses reduce account equity.
  3. Maintenance margin breached — Equity falls below the required minimum (often 50-80% of initial margin depending on the platform).
  4. Margin call issued — Trader is notified to deposit additional collateral.
  5. Liquidation — If no additional funds are added within the deadline, the exchange force-closes the position.

Example calculation: A trader opens a $10,000 long with $1,000 margin (10x leverage). The exchange requires 5% maintenance margin ($500). If Bitcoin drops ~5%, unrealized loss reaches $500, equity falls to $500, and the margin call triggers. A further drop without action leads to full liquidation.

Crypto vs. Traditional Margin Calls

In traditional finance, brokers may give traders hours or days to meet a margin call. In crypto, the process is often automated and near-instantaneous due to 24/7 markets and extreme volatility. Most centralized exchanges like Binance and Bybit use auto-deleveraging systems rather than manual margin calls — positions are liquidated automatically once the threshold is breached.

On decentralized platforms like GMX or dYdX, smart contracts enforce liquidation rules on-chain. Liquidator bots monitor positions and claim rewards for closing undercollateralized trades.

History

  • 1929 — Margin calls during the Wall Street crash cascaded into forced selling, deepening the Great Depression — an early example of liquidation spirals.
  • 2018 — The crypto bear market saw mass margin calls on BitMEX as Bitcoin fell from $6,000 to $3,000, liquidating hundreds of millions in leveraged longs.
  • 2021 — The May crypto crash triggered over $8 billion in liquidations in 24 hours across exchanges, largely from margin calls on overleveraged positions.
  • 2022 — Three Arrows Capital’s failure to meet margin calls from multiple lenders contributed to a contagion event that took down Voyager, BlockFi, and Celsius.

Common Misconceptions

“Margin calls only happen with high leverage.”

Even 2x leverage can trigger a margin call if the asset drops far enough. Lower leverage simply means more room before the maintenance threshold is hit, not immunity from margin calls.

“You always get a warning before liquidation.”

On many crypto exchanges, especially in volatile conditions, the gap between margin call and liquidation can be seconds. Network congestion, exchange lag, or rapid price moves can result in liquidation without any meaningful warning window.

Social Media Sentiment

Margin calls and liquidations are among the most-discussed events in crypto communities. The Coinglass liquidation tracker is frequently shared during market crashes as traders watch cascading forced closures in real time. “Margin called” has become slang for any catastrophic loss, even outside leveraged trading contexts.

Last updated: 2026-04

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