Vanguard Growth Index Fund Admiral Shares (VIGAX) is a passively managed, low-cost investment vehicle that primarily allocates capital to equities of large-capitalization U.S. companies. These companies operate in market segments poised for faster expansion compared to the overall economy. Its objective is to mirror the performance of a specific broad growth index by holding a representative sample, or virtually all, of the securities within that benchmark, employing a long-term, buy-and-hold methodology.