Capital Asset Pricing Model
Version 1.0.0 · Updated 2026-07-30
CORE DEFINITION
Developed by William Sharpe and others in the 1960s, the Capital Asset Pricing Model (CAPM) is based on the core formula: E(Ri) = Rf + βi × (E(Rm) - Rf). Here, E(Ri) is the expected return of asset i, Rf is the risk-free rate, βi is the systematic risk coefficient (Beta) of asset i, E(Rm) is the expected return of the market portfolio, and (E(Rm) - Rf) is the market risk premium. Its scaffolding role is to price risk and quantify investment decisions. CAPM decomposes investment returns into a risk-free component and a risk premium, providing investors with a benchmark to assess whether an asset is fairly priced.
SCAFFOLDING EFFECT
Reduce cognitive load
Risk pricing and quantitative investment decisions. CAPM decomposes investment returns into a risk-free return and a risk premium, providing investors with a benchmark to assess whether an asset is fairly priced.
Anchor fast decisions
Based on 'asset pricing equilibrium'. Return = risk-free rate + β × market risk premium. β measures systematic risk; unsystematic risk is diversifiable and not compensated.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Capital_asset_pricing_modelverified
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