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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 375 of 392  ·  7,824 positions
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
7481 IRIX IRIDEX CORP Healthcare 1,100.0 $1K NEW $1.15 -20.1%
7482 PUT TILLYS INC 300.0 $1K NEW $4.20
7483 TLYS TILLYS INC Consumer Cyclical 299.0 $1K NEW $4.20 -10.3%
7484 PUT LIFEVANTAGE CORP 200.0 $1K NEW $6.24
7485 CALL CION INVT CORP 200.0 $1K NEW $6.23
7486 CALL ECOVYST INC 100.0 $1K NEW $12.45
7487 PUT ABEONA THERAPEUTICS INC 200.0 $1K NEW $6.18
7488 LYEL LYELL IMMUNOPHARMA INC Healthcare 88.0 $1K NEW $14.05 +3.9%
7489 RGS REGIS CORPORATION Consumer Cyclical 44.0 $1K NEW $28.00 -0.5%
7490 CALL INTELLICHECK MOBILISA INC 300.0 $1K NEW $4.10
7491 ETD ETHAN ALLEN INTERIORS INC Consumer Cyclical 55.0 $1K NEW $22.35 +1.3%
7492 CALL REGENCELL BIOSCIENCE HLDGS L 200.0 $1K NEW $6.09
7493 PUT GERDAU SA 300.0 $1K NEW $4.04
7494 YEXT YEXT INC Technology 257.0 $1K NEW $4.67 +29.5%
7495 PUT REGENXBIO INC 100.0 $1K NEW $11.98
7496 PUT HEALTH CATALYST INC 600.0 $1K NEW $1.99
7497 CASTOR MARITIME INC 571.0 $1K NEW $2.09
7498 BENITEC BIOPHARMA INC 89.0 $1K NEW $13.38
7499 PUT NLI HOLDINGS INC 200.0 $1K NEW $5.95
7500 NL NLI HOLDINGS INC Industrials 200.0 $1K NEW $5.95 +7.6%
Page 375 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 30.2%
Consumer Cyclical 13.2%
Healthcare 12.6%
Financial Services 11.0%
Industrials 9.1%
Basic Materials 6.9%
Energy 5.4%
Communication Services 5.2%
Consumer Defensive 3.6%
Utilities 1.6%