iShares Russell 1000 ETF
IWB
1,466 hedge funds and large institutions have $34.9B invested in iShares Russell 1000 ETF in 2026 Q1 according to their latest regulatory filings, with 87 funds opening new positions, 422 increasing their positions, 521 reducing their positions, and 77 closing their positions.
119% more call options, than puts
Call options by funds: $19.3M | Put options by funds: $8.81M
13% more first-time investments, than exits
New positions opened: 87 | Existing positions closed: 77
0.48% less ownership
Funds ownership: 81.9% → 81.42% (-0.48%)
2% less funds holding
Funds holding: 1,493 → 1,466 (-27)
7% less funds holding in top 10
Funds holding in top 10: 98 → 91 (-7)
8% less capital invested
Capital invested by funds: $37.8B → $34.9B (-$2.91B)
19% less repeat investments, than reductions
Existing positions increased: 422 | Existing positions reduced: 521
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fifth Third Bancorp
Cincinnati,
Ohio
|
+$188M |
| 2 |
Bank of America
Charlotte,
North Carolina
|
+$89.7M |
| 3 |
UBS Group
Zurich,
Switzerland
|
+$85.2M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
+$80.3M |
| 5 |
CCA
Catalyst Capital Advisors
Huntington,
New York
|
+$66.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jones Financial Companies
Des Peres,
Missouri
|
-$419M |
| 2 |
TIAA Trust, National Association
Charlotte,
North Carolina
|
-$238M |
| 3 |
BlackRock
New York
|
-$216M |
| 4 |
AC
Allstate Corporation
Northbrook,
Illinois
|
-$196M |
| 5 |
HHGA
Halbert Hargrove Global Advisors
Long Beach,
California
|
-$170M |
IWB Hedge Fund Activity: Q1 2026 in Review
1,466 of the 8,129 institutional investors tracked by Wall St. Rank reported a position in iShares Russell 1000 ETF (IWB) for Q1 2026, worth a combined $34.9B — down 7.7% from $37.8B a quarter earlier.
Buyers outnumbered sellers: 87 funds opened new IWB positions and 77 closed out — a net gain of 10 holders — while 422 added to existing stakes and 521 trimmed.
The largest buyer was Fifth Third Bancorp, adding an estimated $188M. The largest seller was Jones Financial Companies, cutting an estimated $419M.
- 1,466 institutional investors held iShares Russell 1000 ETF (IWB) as of Q1 2026, down from 1,493 in Q4 2025.
- Funds reported $34.9B of iShares Russell 1000 ETF stock for Q1 2026, down 7.7% quarter-over-quarter.
- 87 funds opened new iShares Russell 1000 ETF positions in Q1 2026 and 77 closed out, a net change of +10 holders.
- The largest iShares Russell 1000 ETF buyer in Q1 2026 was Fifth Third Bancorp, an estimated $188M added.
- The largest iShares Russell 1000 ETF seller in Q1 2026 was Jones Financial Companies, an estimated $419M sold.
Based on aggregated 13F filings for Q1 2026.