iShares Core Universal USD Bond ETF
IUSB
845 hedge funds and large institutions have $35.4B invested in iShares Core Universal USD Bond ETF in 2026 Q1 according to their latest regulatory filings, with 78 funds opening new positions, 463 increasing their positions, 215 reducing their positions, and 60 closing their positions.
115% more repeat investments, than reductions
Existing positions increased: 463 | Existing positions reduced: 215
30% more first-time investments, than exits
New positions opened: 78 | Existing positions closed: 60
15% more funds holding in top 10
Funds holding in top 10: 96 → 110 (+14)
6% more capital invested
Capital invested by funds: $33.4B → $35.4B (+$1.98B)
0.51% more ownership
Funds ownership: 97.55% → 98.06% (+0.51%)
0% more funds holding
Funds holding: 844 → 845 (+1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Envestnet Asset Management
Chicago,
Illinois
|
+$652M |
| 2 |
JFGIW
Johnson Financial Group Inc (Wisconsin)
Racine,
Wisconsin
|
+$232M |
| 3 |
KIM
Kestra Investment Management
Austin,
Texas
|
+$142M |
| 4 |
Jones Financial Companies
Des Peres,
Missouri
|
+$141M |
| 5 |
Mariner
Overland Park,
Kansas
|
+$132M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
US Bancorp
Minneapolis,
Minnesota
|
-$68.7M |
| 2 |
BlackRock
New York
|
-$52M |
| 3 |
CAS
Coppell Advisory Solutions
Coppell,
Texas
|
-$21.4M |
| 4 |
MC
McMorgan & Co
San Francisco,
California
|
-$17.1M |
| 5 |
CPBTD
Central Pacific Bank - Trust Division
Honolulu,
Hawaii
|
-$13M |
IUSB Hedge Fund Activity: Q1 2026 in Review
845 of the 8,208 institutional investors tracked by Wall St. Rank reported a position in iShares Core Universal USD Bond ETF (IUSB) for Q1 2026, worth a combined $35.4B — up 5.9% from $33.4B a quarter earlier.
Buyers outnumbered sellers: 78 funds opened new IUSB positions and 60 closed out — a net gain of 18 holders — while 463 added to existing stakes and 215 trimmed.
The largest buyer was Envestnet Asset Management, adding an estimated $652M. The largest seller was US Bancorp, cutting an estimated $68.7M.
- 845 institutional investors held iShares Core Universal USD Bond ETF (IUSB) as of Q1 2026, up from 844 in Q4 2025.
- Funds reported $35.4B of iShares Core Universal USD Bond ETF stock for Q1 2026, up 5.9% quarter-over-quarter.
- 78 funds opened new iShares Core Universal USD Bond ETF positions in Q1 2026 and 60 closed out, a net change of +18 holders.
- The largest iShares Core Universal USD Bond ETF buyer in Q1 2026 was Envestnet Asset Management, an estimated $652M added.
- The largest iShares Core Universal USD Bond ETF seller in Q1 2026 was US Bancorp, an estimated $68.7M sold.
Based on aggregated 13F filings for Q1 2026.