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iShares Core S&P 500 ETF

3,914 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, 1,498 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
3,914
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
PIMJS
326
PKO Investment Management Joint-Stock
Poland
$132M
GS
327
GTS Securities
New York
$132M
ETS
328
ESL Trust Services
New York
$132M
RWM
329
Rezny Wealth Management
Florida
$132M
CFP
330
Catalyst Financial Partners
Massachusetts
$131M
CFO
331
Callan Family Office
Pennsylvania
$131M
AIA
332
Alternative Investment Advisors
Florida
$131M
SAM
333
Securian Asset Management
Minnesota
$130M
Mackenzie Financial
334
Mackenzie Financial
Ontario, Canada
$130M
PFA
335
Pure Financial Advisors
California
$128M
Tudor Investment Corp
336
Tudor Investment Corp
Connecticut
$127M
BCM
337
Brookstone Capital Management
Illinois
$126M
CWAF
338
Core Wealth Advisors (Florida)
Florida
$125M
ACM
339
Advisors Capital Management
New Jersey
$124M
CAM
340
Chandler Asset Management
California
$123M
JWM
341
JGP Wealth Management
Oregon
$123M
WAG
342
Winthrop Advisory Group
Massachusetts
$123M
IC
343
IEQ Capital
California
$123M
SYBT
344
Stock Yards Bank & Trust
Kentucky
$122M
BP
345
BBR Partners
New York
$122M
CAL
346
Capital Analysts LLC
Pennsylvania
$121M
FAC
347
Financial Advisory Corporation
Michigan
$120M
CIA
348
Capital Investment Advisors
Georgia
$120M
VFIC
349
Valley Forge Investment Consultants
Pennsylvania
$119M
IA
350
Integrity Alliance
Iowa
$119M