GFLW uses a rules-based methodology to construct a portfolio of profitable US large-cap growth companies. Companies are screened for positive free cash flow growth trends over the past five years, high free cash flow returns on invested capital, and positive projected earnings. Securities with negative projected free cash flow yields are excluded. The remaining companies are ranked by their free cash flow on invested capital, with the top 150 being considered. Each of these 150 companies is scored based on growth metrics, including sales, EBITDA trends, and long-term analyst growth projections, with the top 100 highest scoring selected for the portfolio. A higher weighting is given to companies with a strong combination of free cash flow and absolute momentum. For a more balanced representation, individual companies are capped at 4%, with a maximum allocation of 45% to those belonging to one sector. The index is rebalanced and reconstituted quarterly.