Simplex Trading
TSSI

Simplex Trading’s TSS Inc TSSI Stock Holding History

Simplex 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
Q1 		$2M Buy
154,000
+21,000
+16% +$211K ﹤0.01% 1814
2025
Q4 		$940K Buy
133,000
+18,300
+16% +$236K ﹤0.01% 2682
2025
Q3 		$2.08M Sell
114,700
-41,100
-26% -$821K ﹤0.01% 2286
2025
Q2 		$4.49M Buy
155,800
+65,100
+72% +$856K ﹤0.01% 1440
2025
Q1 		$711K Buy
90,700
+78,300
+631% +$932K ﹤0.01% 3028
2024
Q4 		$147K Buy
+12,400
New +$120K ﹤0.01% 4807

Other funds holding TSSI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
VARA
Value Aligned Research Advisors Princeton, New Jersey $20.7B AUM 292.88% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
SAM
Silvercrest Asset Management New York $13.8B AUM 28.39% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $377B AUM 19.32% 1-Year Est. Return

Simplex Trading's TSSI Position: Q4 2025 in Review

Simplex Trading sold out of TSS Inc (TSSI) in Q4 2025, closing a stake of 5,714 shares — an estimated $73.8K sold.

Simplex Trading first reported a position in TSSI in Q4 2024 and held it in 2 quarters. The position peaked at $103K in Q3 2025. 92 funds tracked by Wall St. Rank hold TSSI as of Q4 2025.

  • Simplex Trading reported no remaining TSS Inc position as of Q4 2025 after selling out during the quarter.
  • Simplex Trading sold 5,714 TSS Inc shares in Q4 2025, an estimated $73.8K.
  • Simplex Trading first reported a position in TSS Inc in Q4 2024 and held it in 2 quarters.
  • Simplex Trading's TSS Inc position peaked at $103K in Q3 2025.
  • 92 funds tracked by Wall St. Rank held TSS Inc as of Q4 2025.

Based on Simplex Trading's 13F filing for Q4 2025, filed 11 Feb 2026.