The fund offers a straightforward low-volatility take on the S&P 500. It selects about 100 S&P 500 stocks with the lowest daily volatility over the past year. Least volatile stocks receive the highest weight in the portfolio. ULV does not consider correlation among stocks, so it produces a basket of low-volatility stocks, not a minimum volatility portfolio. The largely unconstrained fund makes sizable sector bets at times, which can change dramatically over successive quarterly rebalances. Volatility-based selection and weighting typically drive ULV's market-cap and beta lower than its neutral benchmark.