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NISM Certifications · NISM-Series-X-A: Investment Adviser (Level 1) · Introduction to Modern Portfolio Theory

In the Capital Asset Pricing Model, which risk is rewarded with a risk premium for an investor who holds a well-diversified portfolio?

Systematic risk measured by beta is rewarded. A well-diversified investor has already eliminated company-specific risk, so the market pays no premium for it, while market-wide risk cannot be diversified away and therefore earns compensation under CAPM.

  1. AUnsystematic risk of individual companies
  2. BSystematic risk measured by betaCorrect
  3. CCompany-specific business risk
  4. DRisk that can be removed by adding more securities

Explanation

Diversification removes unsystematic (company-specific) risk, so the market does not pay a premium for bearing it. Only systematic risk, which cannot be diversified away and is measured by beta, earns a premium under CAPM.

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