Margin Accounts, Buying Power, and Loans

Margin accounts and broker credit determine how eligible assets support a loan, how account equity and buying power are calculated, and what rights the broker has when collateral becomes insufficient.

The Margin Account guide consolidates buying on margin, margin loans, margin debt, loan availability, excess equity, margin interest, and non-marginable securities. It includes a cash-account comparison, a leveraged-return example, an interest calculation, collateral-eligibility limits, and the evidence to read in a margin agreement.

Use the broader Margin page when the question involves initial, maintenance, futures, clearing, or portfolio margin. Use Margin Call when account support has already become deficient.

Questions to Ask

• What amount is borrowed, and which assets secure the debit?
• Which holdings are marginable, and what collateral value does the broker assign?
• How are excess equity, buying power, loan availability, and interest calculated?
• Can house requirements, concentration charges, or account permissions change?
• What notice, liquidation, lending, withdrawal, and transfer rights appear in the agreement?

This content is educational and does not recommend opening or using a margin account.

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