Regulation & safety

Margin close-out rule

Also calledMCO · margin close-out protection

A margin close-out rule requires a provider to close one or more leveraged positions when account funds fall to a specified margin threshold. For retail CFDs under UK rules, the threshold is 50% of the margin required to maintain the client’s open positions, measured at account level.

What Margin close-out rule means

A margin close-out rule is intended to limit further losses when an account’s equity has fallen sharply relative to required margin. It is different from a margin call: a margin call asks for more funds or action, while close-out means the provider begins closing positions. The rule’s trigger, calculation, and scope vary by jurisdiction, product, and client classification.

Close-out can occur without the market reaching a trader’s preferred exit price, and a provider may close only some positions first. Fast markets, gaps, execution delays, and price changes can affect the result. The rule reduces exposure in specified circumstances but does not guarantee a favorable closing price or eliminate market, execution, or counterparty risk.

Simplified example: a retail CFD account has open positions requiring $2,000 of margin. If the applicable account-level close-out threshold is 50%, the trigger is $1,000. When the account’s relevant funds fall below $1,000, the provider must begin closing one or more positions under the applicable rule and its execution procedures.

Common questions

Is a margin close-out rule the same as negative balance protection?+

No. Margin close-out requires positions to be closed at a threshold. Negative balance protection limits a retail client’s liability to the funds in the CFD account under applicable rules. They are separate protections.

Will every position close at once when the threshold is reached?+

Not necessarily. The applicable rule may require closing one or more positions, while the provider’s terms and execution procedures determine operational details. Account-level calculations can also mean one position is affected by losses on another.

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01Financial Conduct Authority — Contract for differences02European Securities and Markets Authority — Margin close-out rule Q&A