
Ever wondered why some investments seem riskier than others?
Image: Public domain, via Wikimedia Commons
Ever wondered why some investments seem riskier than others?
Imagine you're planning a road trip with friends and need to decide between a scenic route and a direct highway. The scenic route is longer and more unpredictable, while the highway is shorter and more reliable.
The scenic route (high-risk investment) might be more rewarding but comes with uncertainties. The highway (low-risk investment) offers a predictable journey. The capital asset pricing model (CAPM) helps investors figure out how much extra reward they should expect for taking on more risk.
Example
If the scenic route (high-risk) promises a 20% reward for the extra risk, and the highway (low-risk) offers a 5% reward, investors can use CAPM to decide if the higher reward is worth the uncertainty.
Remember this
CAPM helps you balance the extra reward for taking on more risk.
Text adapted from Wikipedia, licensed under CC BY-SA 4.0.
Risk premium
Why do some investments pay more than others?
Beta (finance)
Beta measures a stock's volatility relative to the market
Fama–French three-factor model
Fama-French model adds size and value factors to CAPM
Modern portfolio theory
Modern Portfolio Theory (MPT) maximizes expected return for a given level of risk through diversification
Arbitrage pricing theory
APT uses multiple systematic risk factors; CAPM uses a single market index
Risk parity
Risk parity allocates based on risk contribution, not capital allocation
Educational content, not financial advice.
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