PGS developed the PGS MLP Top 20 Trax Index®. The index is fundamentally based and includes the 20 MLPs that have had the fastest rate of distribution growth over the previous 8 quarters. Eligible MLPs must meet minimum liquidity and market cap thresholds. An MLP may be eliminated if involved in an event, like a merger. The index constituents are reconfirmed each quarter. The Index is equally weighted and rebalanced each quarter.