First a correction:
VFIAX isn't Vanguard Index Admiral Fund (VFIAX) it is
Vanguard 500 Index Fund Admiral Shares (VFIAX)
As the industry’s first index fund for individual investors, the 500
Index Fund is a low-cost way to gain diversified exposure to the U.S.
equity market. The fund offers exposure to 500 of the largest U.S.
companies, which span many ...