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
Q2 		$1.24M Buy
127,953
+53,194
+71% +$517K 0.02% 1588
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 $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
PCM
Penserra Capital Management Orinda, California $13B AUM 71.84% 1-Year Est. Return
DE
Defiance ETFs New York $7.37B AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
MG
Marex Group London $23.6B AUM 57.16% 1-Year Est. Return
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $83.9B AUM 60.43% 1-Year Est. Return

XTX Topco's QUBT Position: Q2 2026 in Review

XTX Topco increased its Quantum Computing Inc (QUBT) stake by 71% in Q2 2026, buying an estimated $517K and bringing the position to 127,953 shares worth $1.24M. The position accounts for 0.02% of the portfolio, ranked #1588.

XTX Topco first reported a position in QUBT in Q3 2024 and has held it in 5 quarters since. 313 funds tracked by Wall St. Rank hold QUBT as of Q2 2026.

  • XTX Topco held 127,953 shares of Quantum Computing Inc worth $1.24M as of Q2 2026.
  • XTX Topco bought 53,194 Quantum Computing Inc shares in Q2 2026, an estimated $517K.
  • Quantum Computing Inc made up 0.02% of XTX Topco's portfolio in Q2 2026, its #1588 holding.
  • XTX Topco first reported a position in Quantum Computing Inc in Q3 2024 and has held it in 5 quarters since.
  • 313 funds tracked by Wall St. Rank held Quantum Computing Inc as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.