GSLC combines four different factors (value, quality, momentum, and low volatility) into a single ETF. Each factor drives a sub-index that selects and weights stocks based upon various fundamental and technical criteria. Securities with favorable factor scores in each sub-index receive an overweight relative to the reference index. The four resulting sub-indexes are then combined to form the index for GSLC. Each factor sub-index receives equal weight which rebalances every quarter. This rules-based process of the index constructions incorporates a minimization technique which seeks to reduce turnover.