DOSSIER · 13F Holders · Q1 2026
HOII

REX ETF TR

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

CUSIP 761562883·2 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$3K
visible holders
Holders
2
filers reporting
Concentration
96.18%
SIMPLEX TRADING, LLC #1
top holder share
AI Holders Summary · Q1 2026

2 institutions reported HOII in Q1 2026. SIMPLEX TRADING, LLC leads at 96.2% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
SIMPLEX TRADING, LLC
CIK 0001488542
$3K3020.00%Q1 2026
02
UBS Group AG
CIK 0001610520
$124120.00%Q1 2026