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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
MERSOM
76
Municipal Employees' Retirement System of Michigan
Michigan
$1.07B
B
77
Barings
North Carolina
$1.06B
MCM
78
MKP Capital Management
New York
$1.06B
Capstone Investment Advisors
79
Capstone Investment Advisors
New York
$1.02B
NPT
80
National Philanthropic Trust
Pennsylvania
$1B
FT
81
Fiduciary Trust
Massachusetts
$991M
APF
82
Alaska Permanent Fund
Alaska
$955M
Toronto Dominion Bank
83
Toronto Dominion Bank
Ontario, Canada
$943M
JRP
84
Jasper Ridge Partners
California
$931M
JIC
85
Johnson Investment Counsel
Ohio
$930M
Janney Montgomery Scott
86
Janney Montgomery Scott
Pennsylvania
$923M
GT
87
Greenleaf Trust
Michigan
$913M
Carson Wealth (CWM LLC)
88
Carson Wealth (CWM LLC)
Nebraska
$911M
UCFA
89
United Capital Financial Advisors
Texas
$888M
CI
90
Constellation Investments
Ohio
$887M
BSL
91
Blue Sparrow LLC
Delaware
$875M
AA
92
Alesco Advisors
New York
$846M
JFGIW
93
Johnson Financial Group Inc (Wisconsin)
Wisconsin
$835M
California Public Employees Retirement System
94
California Public Employees Retirement System
California
$828M
M&T Bank
95
M&T Bank
New York
$822M
WA
96
Waverly Advisors
Alabama
$816M
FLPIM
97
F.L. Putnam Investment Management
Massachusetts
$803M
Envestnet Portfolio Solutions
98
Envestnet Portfolio Solutions
Illinois
$790M
Cambridge Investment Research Advisors
99
Cambridge Investment Research Advisors
Iowa
$786M
NMIMC
100
Northwestern Mutual Investment Management Company
Wisconsin
$784M