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Jeff Yass’s Quantum Computing Inc QUBT Stock Holding History

Jeff Yass’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 		$43.2M Buy
4,452,900
+1,694,300
+61% +$16.5M ﹤0.01% 1657
2026
Q1 		$18.9M Buy
2,758,600
+1,022,400
+59% +$9.35M ﹤0.01% 2300
2025
Q4 		$17.8M Buy
1,736,200
+285,600
+20% +$4.06M ﹤0.01% 2332
2025
Q3 		$26.7M Sell
1,450,600
-1,204,400
-45% -$20.7M ﹤0.01% 1900
2025
Q2 		$50.9M Buy
2,655,000
+307,900
+13% +$3.39M 0.01% 1160
2025
Q1 		$18.8M Sell
2,347,100
-1,698,500
-42% -$14.9M ﹤0.01% 1791
2024
Q4 		$67M Buy
+4,045,600
New +$22.2M 0.01% 929
2023
Q4 		– Sell
-47,800
Closed -$51.6K – 13133
2023
Q3 		$51.6K Buy
+47,800
New +$58.7K ﹤0.01% 11290
2023
Q1 		– Sell
-12,000
Closed -$18.1K – 13317
2022
Q4 		$18.1K Buy
+12,000
New +$24.4K ﹤0.01% 11792
2022
Q2 		– Sell
-24,500
Closed -$64K – 13745
2022
Q1 		$64K Sell
24,500
-4,900
-17% -$13K ﹤0.01% 12189
2021
Q4 		$100K Sell
29,400
-2,500
-8% -$13.3K ﹤0.01% 12155
2021
Q3 		$199K Buy
+31,900
New +$233K ﹤0.01% 11488

Other funds holding QUBT

California State Teachers Retirement System (CalSTRS)
California State Teachers Retirement System (CalSTRS) West Sacramento, California $782B AUM 28.39% 1-Year Est. Return
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

Jeff Yass's QUBT Position: Q2 2026 in Review

Jeff Yass increased its Quantum Computing Inc (QUBT) stake by 71% in Q2 2026, buying an estimated $4.72M and bringing the position to 1,172,886 shares worth $11.4M. The position accounts for ﹤0.01% of the portfolio, ranked #3188.

Jeff Yass first reported a position in QUBT in Q3 2021 and has held it in 20 quarters since. The position peaked at $35.8M in Q3 2025. 312 funds tracked by Wall St. Rank hold QUBT as of Q2 2026.

  • Jeff Yass held 1,172,886 shares of Quantum Computing Inc worth $11.4M as of Q2 2026.
  • Jeff Yass bought 485,063 Quantum Computing Inc shares in Q2 2026, an estimated $4.72M.
  • Quantum Computing Inc made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #3188 holding.
  • Jeff Yass first reported a position in Quantum Computing Inc in Q3 2021 and has held it in 20 quarters since.
  • Jeff Yass's Quantum Computing Inc position peaked at $35.8M in Q3 2025.
  • 312 funds tracked by Wall St. Rank held Quantum Computing Inc as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.