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NISM Certifications · NISM-Series-X-A: Investment Adviser (Level 1) · Portfolio Performance Measurement and Evaluation

A portfolio earned 20% in year 1 and lost 10% in year 2. What is its compound annual growth rate (CAGR) over the two years, closest to?

The CAGR is about 3.92%. Multiply the yearly growth factors 1.20 and 0.90 to get 1.08, then take the square root for two years, giving 1.0392. The simple average of 5% is wrong because it ignores compounding.

  1. A3.92%Correct
  2. B5.00%
  3. C8.00%
  4. D4.50%

Explanation

Growth factor = 1.20 × 0.90 = 1.08. CAGR = sqrt(1.08) − 1 = 1.0392 − 1 = 3.92%. The arithmetic mean of 5% overstates the return because it ignores compounding; 8% is the total two-year return.

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