Citadel Advisors
TSSI

Citadel Advisors’s TSS Inc TSSI Stock Holding History

Citadel Advisors’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 		$1.73M Buy
+140,813
New +$1.9M ﹤0.01% 6901
2026
Q1 		– Sell
-170,182
Closed -$1.71M – 14587
2025
Q4 		$1.2M Sell
170,182
-341,869
-67% -$4.42M ﹤0.01% 6989
2025
Q3 		$9.27M Buy
512,051
+430,693
+529% +$8.6M ﹤0.01% 3388
2025
Q2 		$2.35M Sell
81,358
-161,032
-66% -$2.12M ﹤0.01% 5411
2025
Q1 		$1.9M Buy
242,390
+40,845
+20% +$486K ﹤0.01% 5630
2024
Q4 		$2.39M Buy
+201,545
New +$1.96M ﹤0.01% 5259

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

Citadel Advisors's TSSI Position: Q2 2026 in Review

Citadel Advisors opened a new position in TSS Inc (TSSI) in Q2 2026: 140,813 shares worth $1.73M. The stake represents ﹤0.01% of the portfolio and ranks #6901 among its holdings. This is a return to the name: Citadel Advisors previously reported a position in TSSI as recently as Q4 2025.

Citadel Advisors first reported a position in TSSI in Q4 2024 and has held it in 6 quarters since. The position peaked at $9.27M in Q3 2025. 124 funds tracked by Wall St. Rank hold TSSI as of Q2 2026.

  • Citadel Advisors held 140,813 shares of TSS Inc worth $1.73M as of Q2 2026.
  • TSS Inc was a new Citadel Advisors position in Q2 2026.
  • TSS Inc made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #6901 holding.
  • Citadel Advisors first reported a position in TSS Inc in Q4 2024 and has held it in 6 quarters since.
  • Citadel Advisors's TSS Inc position peaked at $9.27M in Q3 2025.
  • 124 funds tracked by Wall St. Rank held TSS Inc as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.