DOSSIER · 13F Holders · Q2 2026
UX

ROUNDHILL ETF TRUST

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

CUSIP 77926X684·4 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$3M
visible holders
Holders
4
filers reporting
Concentration
84.78%
CITADEL ADVISORS LLC #1
top holder share
AI Holders Summary · Q2 2026

4 institutions reported UX in Q2 2026. CITADEL ADVISORS LLC leads at 84.8% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
CITADEL ADVISORS LLC
CIK 0001423053
$3M91K0.00%Q2 2026
02
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$354K12K0.00%Q1 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$96K3K0.00%Q2 2026
04
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025