Nationwide Mid Cap Market Index Fund Class A (GMXAX) is an open-end mutual fund that employs a passive indexing strategy to replicate the performance of the S&P MidCap 400 Index before fund expenses; it invests at least 80% of its net assets in a representative sample of equity securities included in the index, which comprises approximately 400 common stocks of U.S. mid-capitalization companies across diverse industries including industrials, financial services, technology, consumer cyclical, and healthcare. The fund offers Class A shares with a front-end sales load of 5.75%, a net expense ratio of 0.67%, and a minimum initial investment of $2,000; it is available exclusively in the United States, with total net assets of approximately $528 million and share class assets of $220 million as of recent data. Subadvised by BlackRock Investment Management, LLC, a New York-based firm with over $12.5 trillion in assets under management, the fund is managed by a team including Jennifer Hsui (since 2019), Peter Sietsema (since 2023), and new additions Matt Waldron and Steven White (both since July 2025). Nationwide Funds, the fund family sponsor, operates as part of Nationwide Mutual Insurance Company, founded in 1926 and headquartered at One Nationwide Plaza in Columbus, Ohio; the fund itself was launched on December 29, 1999.
Recent management enhancements include the appointments of Matt Waldron as Managing Director and Steven White as Director in July 2025, bolstering the portfolio team amid ongoing passive strategy execution with low turnover and cost efficiency. At the parent company level, Nationwide completed key acquisitions in 2025, including reinsurance renewal rights from Markel Group Inc. in August (transferring $1.2 billion in premiums to partner Ryan Specialty) and Allstate's employer stop loss business for $1.25 billion in November, expanding financial services capabilities. These strategic moves, alongside a 2024 acquisition of Jefferson National, reflect Nationwide's focus on growth in insurance, reinsurance, and asset management segments. The fund maintains a contractual expense limitation to 0.30% (excluding 12b-1 fees) through at least February 28, 2026, supporting its low-cost design for mid-cap blend exposure primarily to U.S. equities (97.78% allocation).