Invesco S&P 500 Equal Weight Communication Services ETF (RSPC US) – Portfolio Construction MethodologyThe underlying S&P 500 Equal Weight Communication Services Plus Index targets equal-weight exposure to communication services companies, primarily from the S&P 500 but supplemented to maintain breadth. The core universe starts with the S&P 500, representing U.S. large-cap equities, and includes all constituents classified in the communication services sector under GICS. If, at a quarterly rebalance, fewer t ...