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GROUP ONE TRADING LLC

CIK
932540
City
CHICAGO
State / Country
IL

Top Portfolio Positions

1,830 positions · $2,527,955,420 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio Open

Portfolio Trend

25 quarters · across all stocks

Holdings in TSSI

Export CSV

Shares Held

Position Value (USD)

4 quarters on record
Report Date Value (USD) Shares
2026-03-31 $737,211 56,665
2025-09-30 $2,075,804 114,622
2025-03-31 $284,193 36,203
2024-12-31 $178,066 15,014