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Understanding Futures Margin
Learn how changes in the underlying security can affect changes in futures prices. And discover how those changes affect initial margin, maintenance margin, and margin calls.
Quick info guide
Margin tells traders how much capital may be needed to enter a position, and how much is needed to keep it open. Use this handy guide to learn how it's calculated, why leverage is important, and how margin calls work.
Note: Margin trading increases risk of loss and includes the possibility of a forced sale if account equity drops below required levels. Margin is not available in all account types. Margin trading privileges subject to TD Ameritrade review and approval. Carefully review the Margin Handbook and Margin Disclosure Document for more details. Please see our website or contact TD Ameritrade at 800-669-3900 for copies.