%Risk & accounts

Margin call

Also calledmaintenance call · margin deficiency

A margin call is a broker’s request or account-status notice that additional funds or collateral are required because account equity no longer meets the applicable margin requirement. In retail leveraged trading, the term may also label a platform warning threshold that precedes automatic position close-out.

Evidence passport

What this page checked.

Sources
3
Record updated
August 18, 2026

Margin call — definition, practical meaning, example, and common interpretation risk checked against the linked reference material

Definition checked

  • Definition and plain-English explanation for “Margin call”
  • The worked example and the distinction described in the watch-out note
  • Reference material: U.S. SEC Investor.gov — Margin Call, CFTC — Futures Glossary: Margin Call

Use the term correctly

  • Read the connected terms when a definition depends on another market concept
  • Check the broker’s contract specification when applying the term to a particular product
  • Treat examples as explanations of mechanics, not as prices, forecasts, or trading advice

Method. Editorial desk review of the definition, example, related concepts, and 3 linked sources. Calculations are checked directly where the entry contains arithmetic

Research scope and limits +
  • This glossary entry explains terminology and does not test a broker, trading account, platform, or live market condition
  • Contract wording and practical treatment can differ across brokers, venues, jurisdictions, and products
Page change log +
  1. Added named authorship, a definition evidence record, application checks, and a concise scope disclosure

What Margin call means

The precise mechanism depends on the product and broker agreement. In securities or futures accounts, a call can be a demand to restore required margin. In retail forex or CFDs, a platform may flag a margin-call level while continuously monitoring equity and may later close positions automatically at a separate stop-out level. Notification is not necessarily required before liquidation.

A margin call signals that available capital is insufficient under the current requirements. It can result from adverse price moves, a new position, fees, or a broker raising house margin requirements. Failing to address a deficiency can lead to positions or other account assets being sold or closed under the agreement.

A broker requires $2,000 of maintenance equity for an account’s open exposure. If equity falls to $1,700, the margin deficiency is $300. The broker may request that amount, restrict new trades, or apply its stated close-out process. The exact deadline and liquidation rights depend on the account terms.

Common questions

Can a margin call occur even if a position has not lost value?+

Yes. A broker can increase its margin requirement or apply a different house requirement. That raises the equity needed to support the same position and can create a deficiency without a new adverse price movement.

Is a margin call the same as a stop-out?+

No. A margin call is generally a request, warning, or deficiency status. A stop-out is an automated or broker-initiated process of closing positions once a stated threshold is reached.

Go to the original material.

01U.S. SEC Investor.gov — Margin Call02CFTC — Futures Glossary: Margin Call03FINRA — Know What Triggers a Margin Call