The STOXX USA Select 50 USD Index captures the performance of liquid stocks with low volatility and high dividends from the STOXX USA 900 Index.
The component selection process first excludes all stocks whose 3- or 12-month historical volatilities are the highest. Among the remaining stocks, the 50 stocks with the highest 12-month historical dividend yields are selected to be included in the index. The percentage of exclusion/inclusion at each step is the same.
Those constituents are weighted according to the inverse of their volatility, with a cap at 10%. The indices are reviewed quarterly.