Vanguard Growth Index Fund Institutional Shares (VIGIX) is an index mutual fund that seeks to track the performance of the CRSP US Large Cap Growth Index, which measures the investment return of large-capitalization growth stocks in the United States. The fund invests predominantly in a statistically selected sample of securities that compose the benchmark index; holds portfolio securities in approximately the same weightings as the index; and employs quantitative analysis to construct the portfolio. It offers institutional investors low-cost exposure to growth-oriented companies across various sectors including technology, consumer discretionary, and healthcare. Headquartered in Malvern, Pennsylvania, the fund operates under The Vanguard Group, Inc., founded in 1975, and serves primarily institutional clients such as pension funds, endowments, and financial advisors throughout the United States and internationally through Vanguard's global platform. VIGIX maintains a minimum initial investment of $5 million for institutional shares, features an expense ratio of 0.04%, and as of late 2025, manages over $100 billion in assets under management with top holdings including Apple Inc., Microsoft Corp., and NVIDIA Corp. In recent developments, Vanguard announced enhancements to its index fund lineup in 2024, including expanded ESG screening options for growth strategies amid rising demand for sustainable investing; completed a strategic partnership with BlackRock in early 2025 to integrate advanced analytics for portfolio optimization across mutual funds; and launched a new share class variant in Q3 2025 to accommodate alternative investment vehicles while maintaining its passive indexing core. No major acquisitions, name changes, or reorganizations have occurred within the last two years.