Marsico Focus Fund (MFOCX) is a non-diversified open-end mutual fund that seeks long-term growth of capital by investing primarily in the common stocks of large-capitalization U.S. companies selected for their long-term growth potential; it normally maintains a concentrated core position of 20 to 35 stocks, with approximately 91.88% allocated to U.S. equities, 7.81% to non-U.S. stocks, and minimal cash holdings. The fund offers Investor Class shares (MFOCX) with a net expense ratio of 1.25% and a minimum initial investment of $2,500, as well as Institutional Class shares (MIFOX) with lower expenses; it is classified in the Large Growth Morningstar category and managed by Thomas F. Marsico since inception, alongside Peter Marsico and James Marsico, who joined in August 2022. Launched on December 31, 1997, the fund is advised by Marsico Capital Management, LLC, a Denver, Colorado-based investment management firm founded in 1997 by Thomas F. Marsico and headquartered at 1200 17th Street, Suite 1700; the firm also manages related growth equity strategies including the Marsico Midcap Growth Focus Fund, International Opportunities Fund, and Global Fund, serving mutual funds, retirement plans, endowments, foundations, and family offices primarily in the United States. Recent developments include updated expense limitation agreements by the adviser through January 31, 2026, capping Investor Class total expenses at 1.45% and Institutional Class at 1.20% (excluding certain items like interest and brokerage); full recoupment of previously waived fees as of September 30, 2024; and annual distributions paid on December 20, 2024, to shareholders of record on December 19, 2024, with 2025 estimates announced. As of late 2025, the fund holds total net assets of approximately $1.10 billion, with the Investor Class comprising $909.96 million, and continues to emphasize high-conviction stock selection amid trends like AI infrastructure and experiential consumer spending, reflected in portfolio adjustments such as increased positions in NVIDIA, Progressive, and Booking Holdings during 2025.