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MBB · iShares MBS ETF · Held by Funds ETF

Alerts for MBB
$90.54 +0.05 (+0.06%) At close · Oct 21
Volume · Oct 21 6.2M Avg daily vol (3M) 4.78M

Registered funds — mutual funds, ETFs and closed-end funds — whose latest Form N-PORT portfolio report holds this exact listed security, matched by CUSIP. Each row is one fund position with its size, value and weight in that fund.

Fund Ownership of MBB by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 372,821 shares.

Fund type Shares
Index funds 0
Index ETFs 372,821
Active ETFs 2,046,241
Active funds 415,801
Unclassified 1,308,776
All registered funds 4,143,639
How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Funds holding MBB

38 fund positions
Fund Balance Value % of Fund Open
Showing 1–38 of 38 positions