MTIM
TSSI

Marathon Trading Investment Management’s TSS Inc TSSI Stock Holding History

Marathon Trading Investment Management’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 		– Sell
-27,252
Closed -$193K – 425
2025
Q4 		$193K Sell
27,252
-9,248
-25% -$120K ﹤0.01% 248
2025
Q3 		$661K Buy
+36,500
New +$729K 0.05% 135

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

Marathon Trading Investment Management's TSSI Position: Q1 2026 in Review

Marathon Trading Investment Management sold out of TSS Inc (TSSI) in Q1 2026, closing a stake of 27,252 shares — an estimated $193K sold.

Marathon Trading Investment Management first reported a position in TSSI in Q3 2025 and held it in 2 quarters. The position peaked at $661K in Q3 2025. 109 funds tracked by Wall St. Rank hold TSSI as of Q1 2026.

  • Marathon Trading Investment Management reported no remaining TSS Inc position as of Q1 2026 after selling out during the quarter.
  • Marathon Trading Investment Management sold 27,252 TSS Inc shares in Q1 2026, an estimated $193K.
  • Marathon Trading Investment Management first reported a position in TSS Inc in Q3 2025 and held it in 2 quarters.
  • Marathon Trading Investment Management's TSS Inc position peaked at $661K in Q3 2025.
  • 109 funds tracked by Wall St. Rank held TSS Inc as of Q1 2026.

Based on Marathon Trading Investment Management's 13F filing for Q1 2026, filed 14 May 2026.