A margin call is a broker’s or trading platform’s notice or demand that an account restore required collateral or equity after its value falls below a stated maintenance requirement. The exact threshold and response depend on the account agreement. In some crypto products, a position can be liquidated automatically without a separate warning being delivered first.
How a margin call works
Trading on margin uses assets or cash as collateral for a loan or leveraged position. If losses, fees, interest, or a change in collateral value reduce the account’s equity below the applicable maintenance level, the provider may ask for more collateral, require a reduction in exposure, or sell assets under the agreement. A margin call is the notice or requirement; liquidation is a possible action if the account does not meet the rules.
Crypto products do not all use the same design. A spot margin account may involve borrowed funds and interest, while a futures or perpetual contract may use a collateral system with maintenance thresholds and automatic closeout. Some providers send alerts; others’ terms allow action without contacting the customer first. Neither a fixed percentage nor a universal response time applies across platforms.
What to check
Read the product’s current rules for its maintenance calculation, eligible collateral, valuation or mark price, fees, notification process, liquidation procedure, and whether other balances can be used. Cross margin may expose a wider pool of collateral than isolated margin. A displayed alert is not a guarantee that a user will have time to add funds or choose which asset is sold.
Common misunderstanding
A margin call does not always mean that a broker has already sold an asset. It can be a request to restore the account, although the contract may permit liquidation when a threshold is reached or before a customer responds. Also, “liquidation” in trading means forced closing of a position or sale of collateral; it does not mean exchanging a cryptocurrency for cash in an ordinary spot sale.
Social Media Sentiment
- Reddit (May 10, 2025): In one r/CryptoMarkets discussion, a beginner asks whether liquidation means converting crypto to fiat, while replies try to explain leverage and forced position closure. The replies also use simplified explanations that do not capture every platform’s margin rules, so this is an example of terminology confusion in one thread, not evidence of what traders generally believe. Read the discussion.
Last updated: 2026-10
Related Terms
See Also
- Bitcoin as Collateral in Traditional Finance and DeFi
- The Celsius Collapse and Crypto Lending Risk
- Why Smart Contract Audits Fail
- ChangeNOW
Sources
- FINRA, Margin Calls — Explains that a margin call is a demand to add funds or securities and describes firms’ rights to liquidate positions under applicable rules.
- Coinbase User Margin Trading Agreement — Provides one venue-specific example of maintenance requirements, calls, and contract terms that can allow liquidation without prior contact.
- Coinbase Global Derivatives Margin Types — Describes one provider’s isolated and cross-collateral margin models; its definitions apply to that product, not every exchange.
- CFTC, Understand the Risks of Virtual Currency Trading — Notes that volatility amplifies gains and losses in margined virtual-currency futures contracts.