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CFA Level I · CFA Level I Exam · Types of Financial Returns

An investment has a stated annual rate of 6% compounded continuously. The effective annual rate is closest to:

With continuous compounding the effective annual rate is e^r - 1. For r = 6%, e^0.06 - 1 is about 6.18%. Monthly compounding would give about 6.17% or 6.09% depending on the setup, but continuous compounding gives the highest figure, 6.18%.

  1. A6.00%
  2. B6.09%
  3. C6.18%Correct

Explanation

EAR = e^0.06 - 1 = 1.061837 - 1 = 6.18%. The 6.09% option is the EAR under monthly compounding, (1+0.005)^12 - 1, so it uses the wrong compounding frequency. The 6.00% option ignores compounding altogether.

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