Glossary
Margin Call
A broker's formal demand that a client deposits additional funds or closes positions when the equity in a leveraged account falls below the required maintenance margin level.
What it means
When you trade on margin, you borrow a portion of the position's value from your broker and put up your own capital as collateral. The broker sets two thresholds: an initial margin (the minimum required to open a position) and a maintenance margin (the lower floor you must stay above while the position is open). If market moves push your account equity below that maintenance level, the broker issues a margin call.\n\nA margin call requires you to act quickly. You can either deposit additional funds to bring the account back above the maintenance threshold, or close some or all of your open positions to reduce the exposure. If you do not respond in time, the broker typically has the contractual right to close your positions automatically, often called a forced liquidation or stop-out. The price at which that liquidation occurs may be unfavourable, locking in a loss.\n\nIn the UAE, brokers offering margin trading to retail clients must be licensed by the Dubai Financial Services Authority (DFSA) if operating from the DIFC, or by the Securities and Commodities Authority (SCA) if operating onshore. Each regulator sets conduct rules around how margin requirements must be disclosed to clients. Brokers regulated elsewhere and passporting services into the GCC - for example, FCA-regulated firms in the UK or SEC-registered US brokers - apply their own home-regulator margin rules. Always confirm which rulebook governs your account before trading on margin.
Why it matters for Gulf-based readers
Expats in the GCC often hold salaries in AED, SAR, or QAR and may be trading international markets across different time zones. A sharp overnight move in a US or European market can trigger a margin call while you are asleep, giving you little time to respond before a forced liquidation executes at a poor price. Currency mismatch adds another layer: if your account is denominated in USD but your liquid cash sits in AED, transferring funds quickly may involve conversion delays and FX costs.\n\nPassive, low-cost investing in UCITS ETFs through a regulated broker does not involve margin and carries no margin-call risk. Margin trading is a feature of leveraged CFD accounts, futures accounts, and certain share-trading accounts. If you are not deliberately seeking leverage, confirm with your broker that your account type does not apply margin to your holdings. Check your account agreement and the broker's margin policy document - these are required disclosures under DFSA, SCA, FCA, and other licensing frameworks.
Example
If you open a USD 10,000 position using USD 2,000 of your own equity and the position falls in value by USD 500, your equity drops to USD 1,500 - a broker with a 20% maintenance margin requirement (USD 2,000) would issue a margin call for the shortfall.
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This glossary entry is general information for English-speaking expats in the Gulf. It is not personal financial, tax, or legal advice.