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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 259 of 392  ·  7,824 positions
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
5161 PUT TRONOX HOLDINGS PLC 14,300.0 $90K NEW $6.30
5162 CALL JANUS INTERNATIONAL GROUP IN 16,200.0 $90K NEW $5.55
5163 AIS TIDAL TRUST III 1,053.0 $90K NEW $85.31 -18.0%
5164 PUT CORVUS PHARMACEUTICALS INC 6,000.0 $90K NEW $14.94
5165 CALL MAZE THERAPEUTICS INC 3,000.0 $90K NEW $29.84
5166 PUT MAZE THERAPEUTICS INC 3,000.0 $90K NEW $29.84
5167 CALL CHIMERA INVT CORP 6,700.0 $89K NEW $13.34
5168 PUT CARDLYTICS INC 19,900.0 $89K NEW $4.49
5169 PUT TRUPANION INC 3,600.0 $89K NEW $24.77
5170 PUT NOV INC 4,800.0 $89K NEW $18.55
5171 CALL ENOVIS CORPORATION 4,300.0 $89K NEW $20.70
5172 PUT HAWKEYE 360 INC 4,400.0 $89K NEW $20.22
5173 SFM SPROUTS FMRS MKT INC Consumer Defensive 1,050.0 $89K NEW $84.58 -4.2%
5174 INVESTMENT MANAGERS SER TR I 5,924.0 $89K NEW $14.98
5175 CALL SENSEONICS HLDGS INC 15,600.0 $89K NEW $5.68
5176 WAT WATERS CORP Healthcare 236.0 $89K NEW $375.04 +12.3%
5177 QCML GRANITESHARES ETF TR 4,456.0 $88K NEW $19.84 -24.5%
5178 NTRS NORTHERN TR CORP Financial Services 508.0 $88K NEW $173.84 +7.1%
5179 GASS STEALTHGAS INC Industrials 11,178.0 $88K NEW $7.90 +20.0%
5180 RUM RUM GROUP INC Technology 13,889.0 $88K NEW $6.34 +48.7%
Page 259 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%