Vanguard index fund investor returns

Beginning in 2006 Morningstar has calculated dollar-weighted investor returns for the mutual funds in their database.  provides a convenient means of accessing this returns data for Vanguard index funds.

Morningstar limits the data to only one share class, primarily investor shares, per fund. Morningstar reports admiral share class data only for funds--such as Vanguard's tax-managed funds and most of the sector index funds--that do not offer investor shares.