Margin requirements are not uniform across a diversified account — forex, indices, commodities and stock CFDs typically carry different margin percentages, which means the same dollar position can tie up different amounts of your account balance depending on the instrument.
Why Margin Differs by Asset Class
Margin requirements generally reflect an instrument's typical volatility and liquidity. More volatile or less liquid instruments tend to require a higher margin percentage, since price swings can move faster relative to the position's value.
What This Means in Practice
- A forex position and a stock CFD position of similar notional value may require different amounts of margin
- Holding multiple asset classes at once means tracking margin usage across all of them, not just per-trade
- Margin requirements can change during periods of unusual volatility, independent of your own trading activity
Applying This to a Diversified Account
If you're combining forex, indices, oil and stocks as covered in Diversifying Beyond Forex: Building a Multi-Asset Portfolio in the UAE, understanding margin differences helps avoid unexpectedly tying up more of your account than intended. See also Forex Spreads, Leverage and Execution in the UAE and XAU/USD Spreads, Leverage and Margin Explained for the forex and gold specifics.
Does higher margin mean higher risk?
Not directly — margin determines how much capital is required to open a position, while risk comes from the position size and stop-loss placement relative to your account, similar to how leverage works.
Can margin requirements change after I open a position?
Yes — brokers can adjust margin requirements during periods of unusual volatility, which can affect the margin tied up by existing open positions.
Is margin the same for gold as it is for forex?
Not necessarily — margin requirements are typically set per instrument based on its own volatility and liquidity profile, so gold, forex and index margin requirements often differ from one another.
