Two of Vanguard Group's largest funds: Vanguard Total International Stock Index Fund (VGTSX) and Vanguard Total Stock Market Index Fund (VTSMX) representing $343 billion in aggregate assets will begin tracking indexes of FTSE and the University of Chicago’s Center for Research in Security Prices (CRSP) on June 3.

The two funds previously tracked MSCI indexes.

The $248 billion Total Stock Market Index Fund and the $95 billion Total International Stock Index Fund—two of the largest “core” broad-market funds in the United States, according to Morningstar—serve as underlying holdings for 21 Vanguard funds of funds, including the Vanguard Target Retirement Funds, LifeStrategy Funds, and Managed Payout Funds.

Vanguard announced last October that it would move away from index publisher MSCI and instead transfer the 22 Vanguard fund products to established benchmarks run by London-based FTSE Group or to new benchmarks developed by CRSP.

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