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finra rule 4210

Margin and Margin Calls: How Borrowing to Buy Stocks Works

September 12, 2026May 28, 2026 by Bruno M.
Margin and Margin Calls: How Borrowing to Buy Stocks Works

How buying on margin works: Reg T’s 50% rule, FINRA’s 25% maintenance minimum, what triggers a margin call, and why brokers can liquidate without notice.

Categories Market Education Tags finra rule 4210, investing basics, leverage, margin call, margin trading

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