MBB icon

iShares MBS ETF

927 hedge funds and large institutions have $31.9B invested in iShares MBS ETF in 2025 Q1 according to their latest regulatory filings, with 109 funds opening new positions, 322 increasing their positions, 404 reducing their positions, and 74 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more funds holding

Funds holding:

4% less capital invested

Capital invested by funds: $33.4B → $31.9B (-$1.43B)

5.13% less ownership

Funds ownership: 91.8%86.67% (-5.1%)

20% less repeat investments, than reductions

Existing positions increased: 322 | Existing positions reduced: 404

Holders
927
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
67
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$57.7M
Puts
$4.38M
Net Calls
Net Calls Change

Top Buyers

1 +$264M
2 +$222M
3 +$124M
4
UBS AM
UBS AM
Illinois
+$97.4M
5
Jane Street
Jane Street
New York
+$83.9M
Name Holding Trade Value Shares
Change
Change in
Stake
876
$11.3K
877
$11.2K
878
$9.78K
879
$9.66K
880
$9.66K
881
$9.38K
882
$9.29K
883
$9.1K
884
$9.06K
885
$9K
886
$8.72K
887
$8.44K
888
$6.75K
889
$6.66K
890
$6.47K
891
$6.47K
892
$6.42K
893
$6.1K
894
$6K
895
$5.81K
896
$5.72K
897
$5.63K
898
$5.63K
899
$5.37K
900
$5.34K