Categories October Surprise 2016 VFINX | Vanguard 500 Index Fund;Investor Overview | MarketWatch Post author By Mike Nova Post date January 16, 2019 VFINX | A complete Vanguard 500 Index Fund;Investor mutual fund overview by MarketWatch. View mutual fund news, mutual fund market and mutual fund interest rates. ← Conflicting Conclusions: The Government Assassination Investigations → Russian Misattribution Failures