n NISM Certifications
X NISM Series X
Medium

In which situation will the geometric mean return be lower than the arithmetic mean return?

Practice question from NISM Series XA- Investment Adviser (Level 1) Mock Test 4 — bank. The correct answer is highlighted below with a full explanation.

Options

  1. Investment period more than one year

    Correct answer

  2. B

    Investment period of one year

  3. C

    Investment period less than one year

  4. D

    For all investment periods

Why this is the answer

Over multiple periods, the geometric mean return is lower than the arithmetic mean unless annual returns are identical, due to the compounding effect of variability in returns.

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