Invesco MSCI USA ETF (PBUS) is an exchange-traded fund that seeks to track the performance of the MSCI USA Index, measuring the large- and mid-capitalization segments of the U.S. equity market through free float-adjusted market capitalization weighting; the fund invests at least 90% of its total assets in securities comprising the index, which is rebalanced and reconstituted quarterly on the last business day of February, May, August, and November. Top holdings include NVIDIA Corp., Microsoft Corp., Apple Inc., Amazon.com Inc., and Meta Platforms Inc., with sector allocations led by information technology (approximately 34%), financials (13-14%), consumer discretionary (10-11%), and communication services (9-11%). The ETF offers investors broad exposure to U.S. equities across growth, blend, and value styles in large-, mid-, and small-cap segments, with a low net expense ratio of 0.04%, assets under management exceeding $9 billion, and quarterly distributions of ordinary income. Launched in 2017 under Invesco Exchange-Traded Fund Trust II and managed by Invesco Ltd., an Atlanta-headquartered global investment management firm founded in 1978 with operations in 20 countries. In August 2023, the fund underwent a name change from Invesco PureBeta MSCI USA ETF to Invesco MSCI USA ETF effective after market close on August 25, with no other modifications to its structure, strategy, or operations. No recent partnerships, acquisitions, funding rounds, new product launches, or significant strategic shifts specific to PBUS have been reported within the last two years.