During the 1990s, more funds were offered, and several Vanguard funds, including the S&P 500 index fund and the total stock market fund, became among the largest funds in the world, and Vanguard became the largest mutual fund company in the world.[23] Noted investor John Neff retired as manager of Vanguard's Windsor Fund in 1995, after a 30-year career in which his fund beat returns of the S&P 500 index by an average of 300 basis points per year.[24]