GROUP ONE TRADING LLC

CIK
932540
City
CHICAGO
State / Country
IL

Top Portfolio Positions

1,818 positions · $2,513,815,969 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio Open

Portfolio Trend

31 quarters · across all stocks

Holdings in CPSS

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Shares Held

Position Value (USD)

13 quarters on record
Report Date Value (USD) Shares
2026-03-31 $4,290 555
2025-12-31 $5,178 555
2025-09-30 $5,488 727
2025-06-30 $7,195 732
2025-03-31 $6,346 732
2024-09-30 $11,256 1,200
2024-06-30 $12,740 1,300
2024-03-31 $2,268 300
2023-12-31 $4,685 500
2021-12-31 $130 11
2021-09-30 $63 11
2021-06-30 $49 11
2021-03-31 $44 11