13F Insight
DOSSIER · 13F Holders · Q2 2026

ISHARES TR

27 institutions still hold ISHARES TR as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 464287955·27 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$29.3B
visible holders
Holders
27
filers reporting
Concentration
50.41%
Optiver Holding B.V. #1
top holder share
AI Holders Summary · Q2 2026

27 institutions reported ISHARES TR in Q2 2026. Optiver Holding B.V. leads at 50.4% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Optiver Holding B.V.
CIK 0001859606· Market maker
$14.8B49.8M3.98%Q2 202602
IMC-Chicago, LLC
CIK 0001452861· Market maker
$5.9B22.4M1.42%Q2 202603
JPMORGAN CHASE & CO
CIK 0000019617
$5.4B20.2M0.30%Q2 202604
AKUNA SECURITIES LLC
CIK 0001529090
$1.7B5.8M4.83%Q2 202605
Bracebridge Capital, LLC
CIK 0001426486
$415M14K7.50%Q2 202606
Cartenna Capital, LP
CIK 0001808928
$300M1.0M7.15%Q2 202607
HIGHBRIDGE CAPITAL MANAGEMENT LLC
CIK 0000919185
$256M1.1M6.22%Q2 202608
GROUP ONE TRADING LLC
CIK 0000932540
$199M2.2M0.28%Q2 202609
Cruiser Capital Advisors, LLC
CIK 0001713506
$93M4K35.95%Q1 202610
Maven Securities LTD
CIK 0001633046
$61M205K1.21%Q2 202611
Garda Capital Partners LP
CIK 0001666905
$32M105K11.02%Q2 202612
All Terrain Financial Advisors, LLC
CIK 0001731358
$30M127K4.95%Q2 202613
SG Americas Securities, LLC
CIK 0001313360
$29M8.8M0.03%Q1 202614
SABBY MANAGEMENT, LLC
CIK 0001535610
$13M44111.99%Q2 202615
THOMIST CAPITAL MANAGEMENT, LP
CIK 0001767809
$11M35K3.34%Q2 202616
CIBC Bancorp USA Inc.
CIK 0001711924
$10M33K0.01%Q2 202617
Itau Unibanco Holding S.A.
CIK 0001132597
$8M40K0.14%Q2 202618
Ancora Advisors LLC
CIK 0001446114
$3M5K0.06%Q2 202619
Swan Global Investments, LLC
CIK 0001591505
$2M10K0.05%Q2 202620
MACROVIEW INVESTMENT MANAGEMENT LLC
CIK 0001551727
$1M4K0.65%Q2 2026
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