History of Fund/Manager Vanguard Group is based in Malvern, PA, and is the manager of VIIIX. Since Vanguard Institutional Index Plus made its debut in July of 1997, VIIIX has garnered more than ...

The fund’s value-growth and market-cap orientation both mirror the US category average, too. Market-cap weighting consistently guides the index into the largest and most established names.

The Fund seeks to track the performance of the S&P 500 index, a benchmark that measures the investment return of large-capitalization stocks.