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What is Margin?

The collateral you deposit to open and maintain a leveraged trading position.

Margin is the capital you put up as collateral when opening a leveraged trade. It is not the full cost of the position — it is the security deposit the exchange holds to cover potential losses.

Initial vs. maintenance margin:

TypePurpose
Initial marginRequired to open the position
Maintenance marginMinimum to keep it open

Example: Opening a $10,000 BTC position at 10× leverage requires $1,000 initial margin. That $1,000 is your margin — the remaining $9,000 is borrowed from the exchange.

Margin modes:

  • Isolated margin: Only the allocated margin backs one position. Maximum loss = margin deposited.
  • Cross margin: Entire account balance backs all positions. More flexibility, but a single loss can affect other trades.
  • Margin ratio:

    Most exchanges display a margin ratio — the percentage of your maintenance margin being consumed. At 100%, you face liquidation. Keep it well below 80% as a safety buffer.

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