The Invesco Oil & Gas Services ETF (PXJ) is an investment fund designed to mirror the performance of the Dynamic Oil Services Intellidex Index (the Index). Ordinarily, the ETF allocates a minimum of 90% of its total assets to the common equity securities that constitute this underlying index. The Index employs a rigorous methodology to select its constituents, evaluating companies based on a diverse set of investment merits, such as price momentum, earnings momentum, quality, management effectiveness, and valuation.