Principal U.S. Mega-Cap ETF (USMC) is an exchange-traded fund that provides investors with targeted exposure to a select portfolio of large-cap U.S. equities, focusing on mega-cap companies with significant market capitalization, typically those exceeding $200 billion. The ETF tracks a proprietary index comprising the largest and most liquid U.S. stocks across diverse sectors including technology, financials, healthcare, and consumer discretionary; it employs a market-cap-weighted methodology to replicate index performance while minimizing tracking error through daily rebalancing and securities lending for additional yield. USMC offers investors low-cost access to blue-chip U.S. growth and value leaders via share classes traded on major U.S. exchanges, with features such as dividend reinvestment options, tax-efficient structure as a regulated investment company, and competitive expense ratios. The fund operates primarily in the United States, targeting institutional and retail investors seeking core equity allocation with reduced volatility relative to broader market indices. Launched in 2022 and managed by a leading ETF provider with headquarters in New York, USMC underwent a notable strategic enhancement in late 2024 through the integration of ESG screening filters into its index methodology, alongside a partnership with a major index provider to expand constituent liquidity thresholds; no significant acquisitions or name changes have occurred in the past two years.