DOSSIER · 13F Holders · Q2 2026
SROI

CALAMOS ETF TR

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

CUSIP 12811T209·11 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$9M
visible holders
Holders
11
filers reporting
Concentration
67.34%
Arlington Financial Advisors, LLC #1
top holder share
AI Holders Summary · Q2 2026

11 institutions reported SROI in Q2 2026. Arlington Financial Advisors, LLC leads at 67.3% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Arlington Financial Advisors, LLC
CIK 0001716539
$6M154K0.73%Q2 2026
02
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$1M38K0.00%Q1 2026
03
OSAIC HOLDINGS, INC.
CIK 0001677044
$690K18K0.00%Q2 2026
04
Calamos Wealth Management LLC
CIK 0001455258
$379K10K0.01%Q2 2026
05
CITADEL ADVISORS LLC
CIK 0001423053
$242K6K0.00%Q2 2026
06
SITTNER & NELSON, LLC
CIK 0001846138
$239K6K0.08%Q2 2026
07
HARBOUR INVESTMENTS, INC.
CIK 0000810121
$1K300.00%Q2 2026
08
UBS Group AG
CIK 0001610520
$749200.00%Q2 2026
09
City State Bank
CIK 0001910666
$749200.00%Q2 2026
10
SBI Securities Co., Ltd.
CIK 0001851815
$561150.00%Q2 2026
11
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025