DOSSIER · 13F Holders · Q1 2026
CBXO

CALAMOS ETF TR

9 institutions still hold CALAMOS ETF TR as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 12811T597·9 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$3M
visible holders
Holders
9
filers reporting
Concentration
37.87%
SUSQUEHANNA INTERNATIONAL GROUP, LLP #1
top holder share
AI Holders Summary · Q1 2026

9 institutions reported CBXO in Q1 2026. SUSQUEHANNA INTERNATIONAL GROUP, LLP leads at 37.9% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$1M59K0.00%Q1 2026
02
OLD MISSION CAPITAL LLC
CIK 0001455915
$690K31K0.01%Q1 2026
03
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$522K24K0.00%Q1 2026
04
Calamos Advisors LLC
CIK 0001316507
$420K19K0.00%Q1 2026
05
Ankerstar Wealth, LLC
CIK 0002053917
$315K14K0.33%Q1 2026
06
VIMA LLC
CIK 0002012155
$166K8K0.16%Q2 2026
07
HARBOUR INVESTMENTS, INC.
CIK 0000810121
$13K6090.00%Q1 2026
08
Farther Finance Advisors, LLC
CIK 0001992825
$9K4000.00%Q2 2026
09
Capital Investment Advisory Services, LLC
CIK 0001659203
$7K3020.00%Q2 2026