Margin Call Meaning:
Right Before the Liquidation
A margin call happens when your leveraged position loses enough value that your broker or exchange demands you add more funds — or they close the position for you. In crypto, there's usually no phone call. Just an automated liquidation at 3am.
How Margin Trading Works
When you trade on margin, you borrow funds from the exchange to open a position larger than your actual capital. If you have €1,000 and use 10× leverage, you control a €10,000 position. The exchange holds your €1,000 as collateral (also called margin).
This amplifies both gains and losses. A 10% move in your favour doubles your money. A 10% move against you wipes it out completely. And on crypto, 10% moves happen before breakfast.
What Is a Margin Call?
Every exchange sets a maintenance margin — the minimum collateral required to keep a position open. When your losses eat into your collateral and push it below this threshold, you receive a margin call.
In traditional finance, a broker literally calls you and gives you time to deposit funds. In crypto, most exchanges skip that part. They go straight to liquidation: the exchange closes your position automatically to recover what you owe.
Margin Call vs Liquidation
- → Margin call — warning that collateral is running low; add funds or reduce position
- → Partial liquidation — exchange closes part of your position to restore collateral ratio
- → Full liquidation — entire position closed, all collateral gone
- → Clawback / insurance fund — some exchanges have a fund to cover deficits if liquidation isn't fast enough
Some exchanges (Binance, Bybit, OKX) send email and in-app warnings before liquidation. Many don't, or the notification arrives after the fact. By the time you read "your position was liquidated," the funds are already gone.
How to Calculate Your Liquidation Price
For a long position with 10× leverage:
Example: Entry €40,000 × (1 − 1/10) = €36,000
Actual liquidation price varies by exchange and includes fees. Always check your exchange's position calculator — this is an estimate only.
How to Avoid a Margin Call
- → Use lower leverage. 2× or 3× gives you room to breathe. 100× is a bet, not a trade.
- → Set a stop-loss. Close your position before liquidation price. Takes the decision out of your hands.
- → Keep spare collateral. Don't use 100% of available margin. Leave room to add collateral if needed.
- → Don't hold leveraged positions through weekends. Low liquidity = higher volatility = faster liquidations.
- → Know the funding rate. Perpetual futures have hourly funding. High funding costs eat into your collateral over time.
The Crypto Difference
In traditional markets, circuit breakers halt trading during extreme moves. Stock exchanges close at the end of the day. Your broker calls before liquidating your house.
In crypto: no circuit breakers, no closing time, no phone call. The exchange's liquidation engine runs 24/7 and doesn't care that you're asleep. This is why crypto liquidations cascade — as one position gets liquidated, the selling pressure triggers the next one, and so on, until the whole market has found a new bottom. Often several billion dollars lower.
// For the survivors
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