iShares Core Universal USD Bond ETF
IUSB
754 hedge funds and large institutions have $31.9B invested in iShares Core Universal USD Bond ETF in 2025 Q3 according to their latest regulatory filings, with 83 funds opening new positions, 262 increasing their positions, 344 reducing their positions, and 56 closing their positions.
48% more first-time investments, than exits
New positions opened: 83 | Existing positions closed: 56
1% more funds holding
Funds holding: 743 → 754 (+11)
1.49% less ownership
Funds ownership: 97.09% → 95.6% (-1.5%)
11% less funds holding in top 10
Funds holding in top 10: 97 → 86 (-11)
23% less capital inflows, than outflows
Capital inflows: $1.24B | Capital outflows: $1.61B
24% less repeat investments, than reductions
Existing positions increased: 262 | Existing positions reduced: 344
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jones Financial Companies
Des Peres,
Missouri
|
+$212M |
| 2 |
Wells Fargo
San Francisco,
California
|
+$154M |
| 3 |
Northwestern Mutual Wealth Management
Milwaukee,
Wisconsin
|
+$91.6M |
| 4 |
Thrivent Financial for Lutherans
Minneapolis,
Minnesota
|
+$83.6M |
| 5 |
Mariner
Overland Park,
Kansas
|
+$67M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Envestnet Asset Management
Chicago,
Illinois
|
-$549M |
| 2 |
LPL Financial
San Diego,
California
|
-$125M |
| 3 |
Envestnet Portfolio Solutions
Chicago,
Illinois
|
-$89.8M |
| 4 |
PAS
Park Avenue Securities
New York
|
-$69.4M |
| 5 |
SWM
Spire Wealth Management
Mclean,
Virginia
|
-$65.7M |
IUSB Hedge Fund Activity: Q3 2025 in Review
754 of the 7,647 institutional investors tracked by Wall St. Rank reported a position in iShares Core Universal USD Bond ETF (IUSB) for Q3 2025, worth a combined $31.9B — down 0.61% from $32.1B a quarter earlier.
Buyers outnumbered sellers: 83 funds opened new IUSB positions and 56 closed out — a net gain of 27 holders — while 262 added to existing stakes and 344 trimmed.
The largest buyer was Jones Financial Companies, adding an estimated $212M. The largest seller was Envestnet Asset Management, cutting an estimated $549M.
- 754 institutional investors held iShares Core Universal USD Bond ETF (IUSB) as of Q3 2025, up from 743 in Q2 2025.
- Funds reported $31.9B of iShares Core Universal USD Bond ETF stock for Q3 2025, down 0.61% quarter-over-quarter.
- 83 funds opened new iShares Core Universal USD Bond ETF positions in Q3 2025 and 56 closed out, a net change of +27 holders.
- The largest iShares Core Universal USD Bond ETF buyer in Q3 2025 was Jones Financial Companies, an estimated $212M added.
- The largest iShares Core Universal USD Bond ETF seller in Q3 2025 was Envestnet Asset Management, an estimated $549M sold.
Based on aggregated 13F filings for Q3 2025.