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Portfolio (Quarterly) Guide ↗

GROUP ONE TRADING LLC

· CIK 0000932540
13F Portfolio $71.1B AUM 8,032 positions Filed Aug 14, 2026 EDGAR ↗ ← All Funds
Q2 2026 · All 7824 New
Page 256 of 392  ·  7,824 positions
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
5101 ROUNDHILL ETF TRUST 3,010.0 $97K NEW $32.31
5102 PUT INVESTMENT MANAGERS SER TR I 3,700.0 $97K NEW $26.28
5103 CALL IBEX LTD 3,200.0 $97K NEW $30.37
5104 PUT IHEARTMEDIA INC 22,600.0 $97K NEW $4.29
5105 ZLAB ZAI LAB LTD Healthcare 5,091.0 $97K NEW $19.00 +41.2%
5106 PUT ISHARES TR 1,500.0 $97K NEW $64.43
5107 PUT QFIN HOLDINGS INC 6,100.0 $96K NEW $15.81
5108 CALL RXSIGHT INC 20,000.0 $96K NEW $4.82
5109 ASYS AMTECH SYS INC Technology 4,170.0 $96K NEW $23.08 -31.4%
5110 PUT BROWN & BROWN INC 1,500.0 $96K NEW $64.15
5111 BROWN FORMAN CORP 3,600.0 $96K NEW $26.65
5112 OSUR ORASURE TECHNOLOGIES INC Healthcare 21,511.0 $96K NEW $4.46 -17.3%
5113 BR BROADRIDGE FINL SOLUTIONS IN Technology 700.0 $96K NEW $136.95 +33.7%
5114 PUT NEUMORA THERAPEUTICS INC. 56,300.0 $96K NEW $1.70
5115 PUT DELUXE CORP MEDIUM TERM NTS 4,000.0 $96K NEW $23.88
5116 PUT CLEARFIELD INC 2,400.0 $95K NEW $39.79
5117 QSI QUANTUM SI INC Healthcare 107,473.0 $95K NEW $0.89 -9.3%
5118 PUT BIOMEA FUSION INC 64,700.0 $95K NEW $1.47
5119 CALL TIDAL TRUST II 3,400.0 $95K NEW $27.97
5120 PUT STRIDE INC 1,100.0 $95K NEW $86.24
Page 256 of 392  ·  7,824 positions

Period Price is the implied market price on the last day of the reporting period, calculated as reported value ÷ shares held. It is not the fund's purchase price or cost basis — the fund may have initiated or added to the position at any point during the quarter at a different price. Since Period shows the price change from that quarter-end snapshot to today's last price — it reflects stock movement after the report date, not the fund's actual return.

Sector Allocation
Technology 30.7%
Consumer Cyclical 13.4%
Healthcare 12.8%
Financial Services 9.6%
Industrials 9.3%
Basic Materials 7.0%
Energy 5.5%
Communication Services 5.3%
Consumer Defensive 3.7%
Utilities 1.7%