- Business
- Vanguard Mid-Cap Growth Index Fund (VMGMX) is a passively managed mutual fund offered by The Vanguard Group, Inc., employing an indexing investment approach designed to track the performance of the CRSP US Mid Cap Growth Index, which measures the investment return of mid-capitalization growth stocks. The fund invests all or substantially all of its assets in the common stocks that comprise the benchmark index, holding each stock in approximate proportion to its weighting in the index; it maintains a broadly diversified portfolio of over 120 holdings, with the top 10 positions—including Constellation Energy Corp., Robinhood Markets Inc., Howmet Aerospace Inc., TransDigm Group Inc., and Quanta Services Inc.—representing approximately 20.5% of assets as of late 2025, while emphasizing sectors such as technology, industrials, utilities, financial services, and consumer cyclical stocks. The Admiral Shares class features an adjusted expense ratio of 0.07%, a minimum initial investment of $3,000, a portfolio turnover rate of 21%, a 12-month yield of 0.64%, and total assets under management exceeding $32 billion as of December 2025.
Launched on September 27, 2011, and headquartered in Malvern, Pennsylvania—the global headquarters of The Vanguard Group, Inc., the fund's investment advisor—the strategy targets institutional and qualified individual investors seeking exposure to the faster-growing segment of the U.S. mid-cap equity market, characterized by higher valuations driven by growth prospects and moderated volatility through inclusion of select larger-cap constituents. Its market-cap-weighted methodology, coupled with CRSP's generous buffer rules around size and style constraints and quarterly rebalancing spread over five days, supports low turnover and efficient tracking while allowing strong-performing holdings to maintain prominence.
In recent developments, the fund has benefited from Vanguard's broader strategic expansions, including significant growth in assets under management and the firm's largest fee reductions in early 2025, which enhanced cost competitiveness across its lineup. Vanguard has actively grown its Investor Choice program—empowering eligible investors in select equity index funds, potentially including mid-cap strategies, with direct input on proxy voting policies—expanding it to cover over $3 trillion in assets by 2026 through additions like the Vanguard 500 Index Fund in October 2025. Additionally, Vanguard pursued new product launches such as active equity ETFs in November 2025 and tax-exempt bond ETFs throughout 2024-2025, alongside a dedicated wealth management division and cautious forays into private markets via alliances with Wellington Management and Blackstone, reflecting ongoing innovation in fixed income, ETFs, and advisory capabilities without direct alterations to VMGMX's index-tracking mandate.