Group One Trading
OSS icon

Group One Trading’s One Stop Systems OSS Stock Holding History

Group One Trading’s Portfolio OSS Stock Details OSS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$510K Buy
67,400
+58,900
+693% +$549K ﹤0.01% 3328
2025
Q4 		$61K Buy
8,500
+5,000
+143% +$29.6K ﹤0.01% 5426
2025
Q3 		$18.8K Buy
3,500
+1,200
+52% +$6.57K ﹤0.01% 6739
2025
Q2 		$8.16K Buy
2,300
+1,400
+156% +$3.91K ﹤0.01% 6837
2025
Q1 		$2.09K Buy
900
+300
+50% +$1K ﹤0.01% 6995
2024
Q4 		$2.01K Sell
600
-4,300
-88% -$10.9K ﹤0.01% 6735
2024
Q3 		$11.7K Buy
+4,900
New +$10.9K ﹤0.01% 5528
2024
Q2 		– Sell
-5,100
Closed -$16.6K – 7274
2024
Q1 		$16.6K Buy
+5,100
New +$13.9K ﹤0.01% 5558
2022
Q2 		– Sell
-200
Closed -$1K – 8322
2022
Q1 		$1K Hold
200
– – ﹤0.01% 7856
2021
Q4 		$1K Buy
200
+100
+100% +$501 ﹤0.01% 8007
2021
Q3 		$1K Buy
+100
New +$555 ﹤0.01% 8034

Other funds holding OSS

VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
BA
Bard Associates Chicago, Illinois $398M AUM 54.32% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Group One Trading's OSS Position: Q3 2025 in Review

Group One Trading sold out of One Stop Systems (OSS) in Q3 2025, closing a stake of 8,348 shares — an estimated $45.7K sold.

Group One Trading first reported a position in OSS in Q1 2022 and held it in 14 quarters. The position peaked at $29.6K in Q2 2025. 59 funds tracked by Wall St. Rank hold OSS as of Q3 2025.

  • Group One Trading reported no remaining One Stop Systems position as of Q3 2025 after selling out during the quarter.
  • Group One Trading sold 8,348 One Stop Systems shares in Q3 2025, an estimated $45.7K.
  • Group One Trading first reported a position in One Stop Systems in Q1 2022 and held it in 14 quarters.
  • Group One Trading's One Stop Systems position peaked at $29.6K in Q2 2025.
  • 59 funds tracked by Wall St. Rank held One Stop Systems as of Q3 2025.

Based on Group One Trading's 13F filing for Q3 2025, filed 12 Nov 2025.