iShares Russell 1000 ETF
1,343 hedge funds and large institutions have $30B invested in iShares Russell 1000 ETF in 2025 Q1 according to their latest regulatory filings, with 89 funds opening new positions, 410 increasing their positions, 449 reducing their positions, and 78 closing their positions.
14% more first-time investments, than exits
New positions opened: 89 | Existing positions closed: 78
0.11% less ownership
Funds ownership: 80.8% → 80.7% (-0.11%)
9% less repeat investments, than reductions
Existing positions increased: 410 | Existing positions reduced: 449
1% less funds holding
Funds holding: 1,360 → 1,343 (-17)
7% less capital invested
Capital invested by funds: $32.4B → $30B (-$2.43B)
12% less funds holding in top 10
Funds holding in top 10: 108 → 95 (-13)
59% less call options, than puts
Call options by funds: $19.8M | Put options by funds: $47.7M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jones Financial Companies
Des Peres,
Missouri
|
+$162M |
| 2 |
BlackRock
New York
|
+$147M |
| 3 |
AC
Allstate Corporation
Northbrook,
Illinois
|
+$111M |
| 4 |
CAPTRUST Financial Advisors
Raleigh,
North Carolina
|
+$80.7M |
| 5 |
IC
IEQ Capital
Foster City,
California
|
+$78.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
-$770M |
| 2 |
HHGA
Halbert Hargrove Global Advisors
Long Beach,
California
|
-$159M |
| 3 |
CI
Constellation Investments
Montgomery,
Ohio
|
-$150M |
| 4 |
SMFG
Sumitomo Mitsui Financial Group
Tokyo,
Japan
|
-$129M |
| 5 |
M&T Bank
Buffalo,
New York
|
-$87.9M |
IWB Hedge Fund Activity: Q1 2025 in Review
1,343 of the 7,472 institutional investors tracked by Wall St. Rank reported a position in iShares Russell 1000 ETF (IWB) for Q1 2025, worth a combined $30B — down 7.5% from $32.4B a quarter earlier.
Buyers outnumbered sellers: 89 funds opened new IWB positions and 78 closed out — a net gain of 11 holders — while 410 added to existing stakes and 449 trimmed.
The largest buyer was Jones Financial Companies, adding an estimated $162M. The largest seller was Millennium Management, cutting an estimated $770M.
- 1,343 institutional investors held iShares Russell 1000 ETF (IWB) as of Q1 2025, down from 1,360 in Q4 2024.
- Funds reported $30B of iShares Russell 1000 ETF stock for Q1 2025, down 7.5% quarter-over-quarter.
- 89 funds opened new iShares Russell 1000 ETF positions in Q1 2025 and 78 closed out, a net change of +11 holders.
- The largest iShares Russell 1000 ETF buyer in Q1 2025 was Jones Financial Companies, an estimated $162M added.
- The largest iShares Russell 1000 ETF seller in Q1 2025 was Millennium Management, an estimated $770M sold.
Based on aggregated 13F filings for Q1 2025.