Group One Trading
TSSI

Group One Trading’s TSS Inc TSSI Stock Holding History

Group One Trading’s Portfolio TSSI Stock Details TSSI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-56,665
Closed -$764K – 8709
2026
Q1 		$737K Buy
+56,665
New +$570K ﹤0.01% 2975
2025
Q4 		– Sell
-114,622
Closed -$1.48M – 9395
2025
Q3 		$2.08M Buy
+114,622
New +$2.29M ﹤0.01% 2289
2025
Q2 		– Sell
-36,203
Closed -$476K – 8807
2025
Q1 		$284K Buy
36,203
+21,189
+141% +$252K ﹤0.01% 3663
2024
Q4 		$178K Buy
+15,014
New +$146K ﹤0.01% 4034

Other funds holding TSSI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
SAM
Silvercrest Asset Management New York $15.3B AUM 40.56% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Group One Trading's TSSI Position: Q2 2026 in Review

Group One Trading sold out of TSS Inc (TSSI) in Q2 2026, closing a stake of 56,665 shares — an estimated $764K sold.

Group One Trading first reported a position in TSSI in Q4 2024 and held it in 4 quarters. The position peaked at $2.08M in Q3 2025. 124 funds tracked by Wall St. Rank hold TSSI as of Q2 2026.

  • Group One Trading reported no remaining TSS Inc position as of Q2 2026 after selling out during the quarter.
  • Group One Trading sold 56,665 TSS Inc shares in Q2 2026, an estimated $764K.
  • Group One Trading first reported a position in TSS Inc in Q4 2024 and held it in 4 quarters.
  • Group One Trading's TSS Inc position peaked at $2.08M in Q3 2025.
  • 124 funds tracked by Wall St. Rank held TSS Inc as of Q2 2026.

Based on Group One Trading's 13F filing for Q2 2026, filed 14 Aug 2026.