13F Insight
DOSSIER · 13F Holders · Q2 2026

INTERNATIONAL BUSINESS MACHS

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

CUSIP 459200901·13 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$1.4B
visible holders
Holders
13
filers reporting
Concentration
38.34%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

13 institutions reported INTERNATIONAL BUSINESS MACHS in Q2 2026. IMC-Chicago, LLC leads at 38.3% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$538M1.9M0.13%Q2 202602
Optiver Holding B.V.
CIK 0001859606· Market maker
$446M1.6M0.12%Q2 202603
SIMPLEX TRADING, LLC
CIK 0001488542
$128M457K0.08%Q2 202604
GROUP ONE TRADING LLC
CIK 0000932540
$114M405K0.16%Q2 202605
NATIONAL BANK OF CANADA /FI/
CIK 0000926171
$84M3K0.06%Q2 202606
JPMORGAN CHASE & CO
CIK 0000019617
$57M206K0.00%Q2 202607
Capital Markets Trading UK LLP
CIK 0001719165
$17M70K0.21%Q1 202608
Maven Securities LTD
CIK 0001633046
$13M45K0.25%Q2 202609
CMT Capital Markets Trading GmbH
CIK 0001632813
$4M18K0.04%Q1 202610
Marathon Trading Investment Management LLC
CIK 0001572748
$844K3K0.03%Q2 202611
SG Americas Securities, LLC
CIK 0001313360
$560K120K0.00%Q1 202612
OSAIC HOLDINGS, INC.
CIK 0001677044
$19K30.00%Q2 202613
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025