Strategies · Core
Low Volatility Factor Effect in Stocks
Overweight low-realized-vol (or low-beta) stocks and underweight high-vol names — the low-risk anomaly as a long-short or defensive long-only.
Definition
Estimate trailing volatility or beta, go long the bottom quintile and short the top (or long-only the bottom vs a cap-weighted benchmark). Leverage the long side if you want a beta-1 book (BAB’s cousin). Rebalance slowly; names migrate.
Why it matters
It is a large, implementable defensive factor. Crowding and rate sensitivity (duration-like equities) are the live risks.
Case
2020 Q1: low-vol holds up, then 2020 Q2–21: it lags a high-beta melt-up. The factor is a regime, not a free lunch every year.
How to read it
Vol vs beta, long-only vs LS, and leverage. After costs and borrow, the short high-vol leg is not free.
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