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SIE: Trading & Settlement
SIE practice questionmediumMargin Requirements

Under Regulation T, what is the initial margin requirement for purchasing stock in a margin account?

  1. A10%
  2. B25%
  3. C100%
  4. D50%✓ Correct answer
Explanation

Why D50%

Regulation T requires an initial margin deposit of 50% when buying securities on margin. 25% is the maintenance margin, 100% is for cash accounts, and 10% is not a regulatory threshold.

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