WFBIX
iShares U.S. Aggregate Bond Index Fund
BlackRock Funds III
Index fund

Portfolio concentration

As of March 31, 2026 · N-PORT
Holdings
1
Top-10 weight
100.00%
Effective holdings ?
1
Crowding ?
10.0

Holdings

As of March 31, 2026 · N-PORT
#SecurityTickerSharesValue% of fund
1 U.S. Total Bond Index Master Portfolio 399,722,991 $3.65B 100.41%

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