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	$1.17M	Buy	94,900 +55,800	+143%	+$752K	﹤0.01%	2728
2026 Q1	$509K	Sell	39,100 -107,500	-73%	-$1.08M	﹤0.01%	3334
2025 Q4	$1.04M	Buy	146,600 +26,100	+22%	+$337K	﹤0.01%	2854
2025 Q3	$2.18M	Sell	120,500 -51,100	-30%	-$1.02M	﹤0.01%	2228
2025 Q2	$4.95M	Buy	171,600 +121,000	+239%	+$1.59M	0.01%	1336
2025 Q1	$397K	Buy	50,600 +42,400	+517%	+$505K	﹤0.01%	3325
2024 Q4	$97.3K	Buy	+8,200	New	+$79.6K	﹤0.01%	4541

Other funds holding TSSI

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

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 Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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 San Diego, California $445B AUM 25.58% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

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.