DOSSIER · 13F Holders · Q3 2026

ROUNDHILL ETF TRUST

7 institutions still hold ROUNDHILL ETF TRUST as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 77926X950·7 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$508M
visible holders
Holders
7
filers reporting
Concentration
38.31%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

7 institutions reported ROUNDHILL ETF TRUST in Q3 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
$195M3.2M0.04%Q3 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$129M2.1M0.18%Q3 2026
03
JPMORGAN CHASE & CO
CIK 0000019617
$99M1.6M0.01%Q3 2026
04
HRT FINANCIAL LP
CIK 0001475597
$84M1.4M0.15%Q3 2026
05
Marathon Trading Investment Management LLC
CIK 0001572748
$616K10K0.02%Q3 2026
06
Truxt Investmentos Ltda.
CIK 0001721168
$359K8K0.15%Q3 2026
07
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025