XT
SST icon

XTX Topco’s System1 SST Stock Holding History

XTX Topco’s Portfolio SST Stock Details SST Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-12,376
Closed -$48.5K – 4360
2025
Q4 		$48.5K Sell
12,376
-128
-1% -$662 ﹤0.01% 2838
2025
Q3 		$88K Buy
+12,504
New +$86.4K ﹤0.01% 2054
2025
Q2 		– Sell
-2,962
Closed -$11.3K – 3123
2025
Q1 		$11.3K Buy
2,962
+1,641
+124% +$10.1K ﹤0.01% 2237
2024
Q4 		$11.9K Sell
1,321
-942
-42% -$9.48K ﹤0.01% 2124
2024
Q3 		$25.3K Sell
2,263
-153
-6% -$1.97K ﹤0.01% 1802
2024
Q2 		$36.7K Buy
+2,416
New +$40.8K ﹤0.01% 1540

Other funds holding SST

CH
Cannae Holdings Las Vegas, Nevada $134M AUM 85.46% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Cerity Partners
Cerity Partners New York $70.8B AUM 21.68% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
NMC
Nine Masts Capital Central, Hong Kong $995M AUM 22.79% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

XTX Topco's SST Position: Q1 2026 in Review

XTX Topco sold out of System1 (SST) in Q1 2026, closing a stake of 12,376 shares — an estimated $48.5K sold.

XTX Topco first reported a position in SST in Q2 2024 and held it in 6 quarters. The position peaked at $88K in Q3 2025. 25 funds tracked by Wall St. Rank hold SST as of Q1 2026.

  • XTX Topco reported no remaining System1 position as of Q1 2026 after selling out during the quarter.
  • XTX Topco sold 12,376 System1 shares in Q1 2026, an estimated $48.5K.
  • XTX Topco first reported a position in System1 in Q2 2024 and held it in 6 quarters.
  • XTX Topco's System1 position peaked at $88K in Q3 2025.
  • 25 funds tracked by Wall St. Rank held System1 as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.