SPMV offers a minimum-volatility portfolio of US large-cap stocks at. Rather than simply holding a basket of low-volatility stocks, the funds index uses an optimization algorithm to build a portfolio of stocks that work together to reduce portfolio volatility. The optimizer limits sector and industry tilts, but the guard rails are set fairly wide. The optimizer also constrains exposure to other fundamental and technical risk factors, which should help the fund avoid surprises. Still, dont expect SPMV to closely resemble its S&P 500 selection universe.