FRM Part II · FRM Exam Part II · Alpha (and the Low-Risk Anomaly)
A portfolio manager at an asset management firm wants to exploit the low-risk anomaly in equities using a long-only mandate benchmarked to a cap-weighted index. Which implementation approach is most consistent with the anomaly as described in the Alpha (and the Low-Risk Anomaly) reading?
The manager should overweight low-beta and low-volatility stocks and underweight high-beta stocks versus the benchmark. The anomaly is that low-risk stocks have delivered better risk-adjusted returns than CAPM predicts, so tilting toward them captures it within a long-only mandate.
- AOverweight low-beta and low-volatility stocks and underweight high-beta stocks relative to the benchmarkCorrect
- BOverweight high-beta stocks because they carry the highest expected return under CAPM
- CHold the benchmark weights but add leverage to raise expected return
- DConcentrate in the stocks with the largest market capitalization
Explanation
The low-risk anomaly says low-beta and low-volatility stocks have earned higher risk-adjusted returns than high-beta stocks. A long-only investor exploits it by tilting toward low-risk stocks and away from high-risk ones. Overweighting high beta does the opposite, and leverage on the benchmark does not use the anomaly.
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