Be Careful With Your Low Beta Bets – ValueWalk Premium
Low Beta Bets

Be Careful With Your Low Beta Bets

Petri Jylha, Imperial College

Matti Suominen, Aalto University

Tuomas Tomunen, Columbia University

Betting against beta

All MBAs and Finance students learn in their basic finance courses the Capital Asset Pricing Model (CAPM), a celebrated theory largely attributable to the Nobel price winner William Sharpe. This theory states that riskier assets in equilibrium should earn higher returns, and that the relevant measure for a stock’s risk should be its “beta,” a measure of the stock’s systematic risk. Technically a stock’s beta equals its correlation with the stock market index, scaled by . . .


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