MONARCH CASINO & RESORT INC

DOSSIER · 13F Holders · Q2 2026

MONARCH CASINO & RESORT INC

4 institutions still hold MONARCH CASINO & RESORT INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 609027907·4 13F holders·last filed Jun 30, 2026

Market cap

—

13F value held

$4M

visible holders

Holders

4

filers reporting

Concentration

70.26%

GROUP ONE TRADING LLC #1

top holder share

AI Holders Summary · Q2 2026

4 institutions reported MONARCH CASINO & RESORT INC in Q2 2026. GROUP ONE TRADING LLC leads at 70.3% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(1 on this page)

#HolderValueShares% port.Quarter

01

GROUP ONE TRADING LLC

CIK 0000932540

$2M19K0.00%Q2 2026 02

IMC-Chicago, LLC

CIK 0001452861· Market maker

$974K7K0.00%Q2 2026 03

SIMPLEX TRADING, LLC

CIK 0001488542

$79K6000.00%Q2 2026 04

CONCOURSE FINANCIAL GROUP SECURITIES, INC.