XT
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XTX Topco’s Quantum Computing Inc QUBT Stock Holding History

XTX Topco’s Portfolio QUBT Stock Details QUBT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$512K Buy
74,759
+39,053
+109% +$357K 0.01% 2030
2025
Q4 		$366K Buy
+35,706
New +$508K 0.01% 1889
2025
Q3 		– Sell
-62,990
Closed -$1.21M – 3138
2025
Q2 		$1.21M Buy
+62,990
New +$694K 0.05% 558
2024
Q4 		– Sell
-69,999
Closed -$45.7K – 2820
2024
Q3 		$45.7K Buy
+69,999
New +$44.8K ﹤0.01% 1706

Other funds holding QUBT

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
DE
Defiance ETFs New York $6.98B AUM
MG
Marex Group London $15.8B AUM 31.44% 1-Year Est. Return
PCM
Penserra Capital Management Orinda, California $8.52B AUM 37.76% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $73.7B AUM 53.56% 1-Year Est. Return

XTX Topco's QUBT Position: Q1 2026 in Review

XTX Topco increased its Quantum Computing Inc (QUBT) stake by 109% in Q1 2026, buying an estimated $357K and bringing the position to 74,759 shares worth $512K. The position accounts for 0.01% of the portfolio, ranked #2030.

XTX Topco first reported a position in QUBT in Q3 2024 and has held it in 4 quarters since. The position peaked at $1.21M in Q2 2025. 293 funds tracked by Wall St. Rank hold QUBT as of Q1 2026.

  • XTX Topco held 74,759 shares of Quantum Computing Inc worth $512K as of Q1 2026.
  • XTX Topco bought 39,053 Quantum Computing Inc shares in Q1 2026, an estimated $357K.
  • Quantum Computing Inc made up 0.01% of XTX Topco's portfolio in Q1 2026, its #2030 holding.
  • XTX Topco first reported a position in Quantum Computing Inc in Q3 2024 and has held it in 4 quarters since.
  • XTX Topco's Quantum Computing Inc position peaked at $1.21M in Q2 2025.
  • 293 funds tracked by Wall St. Rank held Quantum Computing Inc as of Q1 2026.

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