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iShares Core S&P 500 ETF

3,911 hedge funds and large institutions have $551B invested in iShares Core S&P 500 ETF in 2026 Q1 according to their latest regulatory filings, with 165 funds opening new positions, 1,738 increasing their positions, 1,495 reducing their positions, and 125 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less funds holding

Funds holding:

less ownership

Funds ownership:

3% less funds holding in top 10

Funds holding in top 10: 1,2681,235 (-33)

6% less capital invested

Capital invested by funds: $587B → $551B (-$35.6B)

14% less call options, than puts

Call options by funds: $1.88B | Put options by funds: $2.2B

Holders
3,911
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1,235
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.88B
Puts
$2.2B
Net Calls
Net Calls Change

Top Buyers

1 +$8.51B
2 +$5.79B
3 +$4.52B
4
BlackRock
BlackRock
New York
+$3.64B
5
Citadel Advisors
Citadel Advisors
Florida
+$2.72B

Top Sellers

1 -$11.6B
2 -$6.93B
3 -$5.01B
4
Marshall Wace
Marshall Wace
United Kingdom
-$4.21B
5
SSA
Schonfeld Strategic Advisors
New York
-$3.6B
Name Holding Trade Value Shares
Change
Change in
Stake
US Bancorp
26
US Bancorp
Minnesota
$3.8B
AIMCA
27
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$3.79B
AllianceBernstein
28
AllianceBernstein
Tennessee
$3.65B
Walleye Capital
29
Walleye Capital
New York
$3.58B
Mariner
30
Mariner
Kansas
$3.57B
UBS Group
31
UBS Group
Switzerland
$3.06B
Raymond James Financial
32
Raymond James Financial
Florida
$2.97B
Wealth Enhancement Advisory Services
33
Wealth Enhancement Advisory Services
Minnesota
$2.94B
CAPTRUST Financial Advisors
34
CAPTRUST Financial Advisors
North Carolina
$2.81B
Cetera Investment Advisers
35
Cetera Investment Advisers
Illinois
$2.78B
Corient Private Wealth
36
Corient Private Wealth
Florida
$2.76B
Alyeska Investment Group
37
Alyeska Investment Group
Illinois
$2.76B
National Pension Service
38
National Pension Service
South Korea
$2.69B
Citadel Advisors
39
Citadel Advisors
Florida
$2.65B
Korea Investment Corp
40
Korea Investment Corp
South Korea
$2.62B
NMIFOAC
41
National Mutual Insurance Federation of Agricultural Cooperatives
Japan
$2.34B
Asset Management One
42
Asset Management One
Japan
$2.11B
MSDF
43
Michael & Susan Dell Foundation
New York
$2.08B
HighTower Advisors
44
HighTower Advisors
Illinois
$2.08B
KeyBank National Association
45
KeyBank National Association
Ohio
$2.08B
UIM
46
USS Investment Management
United Kingdom
$1.98B
KCM
47
Kedalion Capital Management
United Kingdom
$1.98B
PFM
48
Potomac Fund Management
Florida
$1.97B
California State Teachers Retirement System (CalSTRS)
49
California State Teachers Retirement System (CalSTRS)
California
$1.93B
SSA
50
Schonfeld Strategic Advisors
New York
$1.88B