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Quantum Computing 22 May 2026 - 29 May 2026

Infleqtion shares react to $100 million quantum funding news in Washington

Infleqtion shares trade ahead of bell with Oxford Quantum expansion in focus

Infleqtion shares climbed in early U.S. trading Friday after the quantum-technology group announced plans to grow in Oxford. Investors are watching if the firm’s push can move its platform from science to manufacturing. A Cboe BZX premarket figure had the stock up 2.1% at $18.14 as of 9:10 a.m. EDT, before the regular session on the NYSE opens at 9:30. Infleqtion is only a few months into trading publicly after it merged with Churchill Capital Corp X in February. It started trading on the NYSE under the ticker “INFQ”. At the time, the companies called Infleqtion the first neutral-atom quantum technology company on the public market.
29 May 2026
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D-Wave Stock Moves Early as Quantum Rally Hits Another Test

D-Wave Stock Moves Early as Quantum Rally Hits Another Test

D-Wave Quantum Inc. shares fell in U.S. premarket trading Friday, with the stock easing as investors looked at new government quantum programs and the company’s small revenue. The stock changed hands at $28.96 in premarket trade, 1.8% below its last close, per Investing.com. NYSE regular hours are 9:30 a.m. to 4 p.m. EDT. Friday is not on the exchange’s 2026 holiday list. Memorial Day fell on Monday, May 25.
29 May 2026
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The $10 Billion Quantum Bet Sending IBM Stock Higher Before the Bell

The $10 Billion Quantum Bet Sending IBM Stock Higher Before the Bell

IBM shares rose before the bell on Friday, extending a rally sparked by the company’s new quantum-computing spending plan and a separate cybersecurity push with Red Hat. The stock was last indicated at $264.22, up $9.02, or about 3.5%, from its previous close. The move came before the main U.S. trading session. The New York Stock Exchange’s core session runs from 9:30 a.m. to 4:00 p.m. ET, with early trading open before that window.
29 May 2026
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Rigetti Computing Stock Jumps Before RGTI Earnings as Quantum Revenue Test Hits Tonight

Rigetti Stock Climbs Before the Bell as IBM’s $10 Billion Quantum Push Reignites a Wild Rally

Rigetti Computing rose in early premarket trading on Friday, extending a sharp quantum-stock rally after IBM laid out a $10 billion investment plan for the sector and U.S. funding remained the main catalyst for smaller names. Rigetti closed Thursday at $27.03, up 9.79%, and was quoted at $27.34 at 5:52 a.m. EDT in premarket trading, the period before the regular exchange session. The move matters now because the trade has packed policy support, long-term technology hopes and small-company risk into one of the market’s most volatile corners. Rigetti has climbed roughly 60% from its May 20 close of $16.88, with Thursday volume of 85.2 million shares following last week’s heavy surge.
29 May 2026
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D-Wave stock gains as quantum bets in Washington fuel new rally

D-Wave stock gains as quantum bets in Washington fuel new rally

D-Wave Quantum Inc. shares surged Thursday as traders piled back into quantum-computing names. The stock pushed higher, part of a shaky stretch for the sector, with investors eyeing any names with U.S. government support for the technology. The stock climbed 8.4% to $29.79 in New York, hitting an intraday high of $30.21 earlier. Around 34.6 million shares changed hands. The company was valued close to $11 billion.
28 May 2026
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Infleqtion Shares Rise On Oxford Quantum Update, Holder Sale Lingers

Infleqtion Shares Rise On Oxford Quantum Update, Holder Sale Lingers

Infleqtion shares jumped early Thursday after the quantum-tech firm said it will expand in Oxford. The news gave another data point for investors, who were still watching a big stock sale tied to Maverick that showed up in filings earlier this week. The shares were at $16.81 as of 9:49 a.m. EDT, up $1.35 from yesterday’s close. They started at $15.82 and swung between $15.06 and $16.88, with volume around 6.5 million shares.
28 May 2026
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Rigetti Shares Pull Back After Quantum Rally, Market Eyes Next Catalyst

Rigetti Shares Pull Back After Quantum Rally, Market Eyes Next Catalyst

Rigetti Computing was down early Wednesday as the quantum-computing stock lost ground after recent spikes. Shares ended Tuesday at $25.07, off 5.13%, following big gains of 30.57% on May 21 and 19.87% on May 22. Premarket quotes had Rigetti slipping further to $24.50 at about 4:43 a.m. EDT. This is the situation now. Investors have new company news to trade, while they also gauge if last week’s government-led rally got out in front of what’s still a small commercial base for quantum hardware.
27 May 2026
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Honeywell’s Quantum Offshoot Is Targeting $12.7 Billion In Public Debut

Honeywell’s Quantum Offshoot Is Targeting $12.7 Billion In Public Debut

Quantinuum, which is backed by Honeywell, is looking for a valuation up to $12.7 billion in its planned U.S. IPO. The quantum computing firm out of Broomfield, Colorado, set terms Monday for one of the sector’s biggest swings in public markets. Quantinuum is offering around 21.05 million shares, priced between $45 and $50, to try to bring in as much as $1.05 billion. The timing is key. Investors are piling into firms linked to strategic tech like AI infrastructure, defense, and quantum computing. Washington has started putting money into some of these areas directly. Last week, the Commerce Department said it sent out letters of intent for $2.013 billion in federal incentives spread across nine quantum companies and foundry projects.
26 May 2026
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IonQ quantum run up ahead of Tuesday as Washington puts $2 billion in play

IonQ quantum run up ahead of Tuesday as Washington puts $2 billion in play

IonQ is trading up in premarket Tuesday after the long U.S. holiday break. Shares stood at $65.43 on Public.com at 6:00 a.m. ET, 2.8% higher than the last closing price. Traders are still chasing quantum names following Washington's new push for federal investment in the sector. The cash market was still closed when this happened. U.S. markets took a break Monday for Memorial Day. Stock-index futures moved up early Tuesday. Nasdaq 100 futures traded 0.77% higher at 4:50 a.m. ET, according to Reuters.
26 May 2026
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D-Wave Heads Into $100 Million U.S. Challenge as Quantum Peer Stocks Jump

D-Wave Heads Into $100 Million U.S. Challenge as Quantum Peer Stocks Jump

D-Wave Quantum Inc. shares edged lower before the bell Tuesday. The move follows a strong rally after the latest funding round, which saw the stock jump about 44.5% last week. The shares, traded in New York, were at $29.28 as of 5:56 a.m. EDT, off 0.4%. They closed Friday at $29.40, up 14.2% that day. U.S. markets reopened following the Memorial Day holiday, and traders are weighing if the latest jump in quantum-computing stocks will keep going. NYSE recognizes May 25 as the Memorial Day holiday for markets in 2026, according to its calendar. Reuters said S&P 500 and Nasdaq futures were higher early Tuesday as trading resumed after the break.
26 May 2026
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Rigetti Computing Stock Jumps Before RGTI Earnings as Quantum Revenue Test Hits Tonight

Rigetti Stock’s $100 Million Quantum Deal Has One Big Catch Traders Can’t Ignore

Rigetti Computing shares were indicated slightly lower in early premarket trading on Tuesday, the first regular-session setup after a two-day surge of more than 50% in the Nasdaq-listed quantum computing company. RGTI was quoted at $26.36 at 5:31 a.m. EDT, down 0.23%, after closing Friday at $26.42, up 19.87%; it had climbed 30.57% the previous session. The timing matters. U.S. stock markets were closed Monday for Memorial Day, and Nasdaq’s regular session runs from 9:30 a.m. to 4:00 p.m. Eastern, with premarket trading generally thinner and more volatile because fewer buyers and sellers are active.
26 May 2026
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Infleqtion shares react to $100 million quantum funding news in Washington

Infleqtion Shares Up 31% This Week After $100 Million Quantum Contract, Eyes on Tuesday Trading

Infleqtion shares are coming off a more than 30% gain last week as the market heads into a shortened trading week. Investors will be watching for the market to price in a proposed $100 million U.S. Commerce Department award when Wall Street opens again on Tuesday. U.S. markets didn’t open Monday because of Memorial Day. The NYSE says May 25 will be a holiday in 2026, too. Normal trading hours are 9:30 a.m. to 4 p.m. Eastern.
26 May 2026
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Quantum computing shares spike, traders eye Tuesday test

Quantum computing shares spike, traders eye Tuesday test

Quantum Computing Inc. faces a new test when trading resumes Tuesday. The stock surged ahead of the holiday weekend, part of a quantum sector rally sparked by U.S. government spending plans. Reuters did not list the company among funding recipients. The stock ended Friday at $12.31, up 90 cents on the day, a 7.89% jump. About 67.5 million shares changed hands. For the week, shares gained nearly 17% from last Friday’s $10.51 close. The Nasdaq Composite added just 0.5% over the same stretch.
26 May 2026
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Rigetti Stock Stays Closed, $100 Million Quantum News May Hit Tuesday

Rigetti Stock Stays Closed, $100 Million Quantum News May Hit Tuesday

Rigetti Computing is back on the board Tuesday after the break, with attention fixed on a possible U.S. Commerce Department grant that could bring in as much as $100 million. The news sent the quantum-computing name among last week’s most active stocks. U.S. markets are shut Monday for Memorial Day, so there’s no new cash quote. Rigetti last changed hands at $26.42 on Friday, up 19.9% with volume over 204 million shares. That’s a jump of about 48% from the previous Friday’s $17.85 close.
25 May 2026
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Quantum Computing Stock Rises Ahead of Holiday; Tuesday in Focus

Quantum Computing Stock Rises Ahead of Holiday; Tuesday in Focus

Quantum Computing Inc. jumped after the holiday, picking up strong gains while traders moved into quantum computing stocks. Washington announced more than $2 billion in government funding for the sector, but Quantum Computing did not make the list of companies set to get those awards. This comes up now as the move seemed more like investors buying into the sector, not picking one company as the winner. Quantum computing works with qubits, which can approach problems differently than the 0-or-1 bits in normal computers. Some investors are betting federal funding can push quantum tech out of the lab and into commercial use faster.
24 May 2026
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Infleqtion Stock Soared After $100 Million Quantum Move, Eyes Tuesday Event

Infleqtion Stock Soared After $100 Million Quantum Move, Eyes Tuesday Event

Infleqtion Inc. is trading higher as the holiday-shortened week starts, bouncing after a big move last week. The U.S. Commerce Department signed letters of intent for $2.013 billion in incentives for quantum-computing firms, and Infleqtion is in line for $100 million in planned funding as one of those recipients. The newly public neutral-atom company was included in the deal. Infleqtion ended Friday at $16.35, up 11.2%. The stock surged 31.5% on Thursday. Shares are now about 31% higher compared to the May 15 close. Infleqtion started trading on the NYSE in February.
24 May 2026
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Rigetti Stock’s $100 Million Weekend Question: Can RGTI Hold Its Quantum Rally?

Rigetti Stock’s $100 Million Weekend Question: Can RGTI Hold Its Quantum Rally?

Rigetti Computing heads into a holiday-shortened U.S. trading week after one of the sharpest moves among quantum names: RGTI closed regular trading Friday at $26.42, up 19.87% on the day and about 48% from the prior Friday close of $17.85. The after-hours quote slipped to $25.86, a small giveback after a week of heavy turnover. The stock’s run matters now because the latest rally was not just a growth-stock bounce. It followed Rigetti’s May 21 letter of intent with the U.S. Department of Commerce for an award of up to $100 million over three years to speed superconducting quantum computing research and development; a letter of intent is a preliminary agreement before final contracts are signed.
24 May 2026
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AST SpaceMobile and Quantum Computing stocks now seen as Wall Street frontier bets

AST SpaceMobile and Quantum Computing stocks now seen as Wall Street frontier bets

Tech stocks AST SpaceMobile and Quantum Computing Inc. were sharply higher Friday, each catching more speculative flows. AST SpaceMobile jumped about 11% by late morning, while Quantum Computing Inc. gained close to 16%. Both stirred up bets in satellite-to-phone and quantum computing hardware. Timing is playing a role. Space stocks got a lift with buzz building about a potential SpaceX IPO. Defiance rolled out a leveraged ETF, aiming for 2x the daily move in AST SpaceMobile shares. Quantum stocks went higher too, boosted by headlines about fresh public funding in the U.S. and Europe.
22 May 2026
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Quantum Stocks Rally on $2 Billion Washington Move; QBTS, RGTI, INFQ Surge

Quantum Stocks Rally on $2 Billion Washington Move; QBTS, RGTI, INFQ Surge

D-Wave Quantum, Rigetti Computing, and Infleqtion shares all jumped more than 30% on Thursday as traders reacted to fresh U.S. government funding tied to quantum tech. D-Wave ended up 33.37% at $25.74, Rigetti added 30.57% at $22.04, and Infleqtion gained 31.48% to close at $14.70. IBM and GlobalFoundries moved higher, too. Commerce is shifting from research grants to action, signing nine letters of intent tied to $2.013 billion in CHIPS Act incentives. These aren’t final awards, but the department said it would get minority, non-controlling equity stakes in each business.
22 May 2026
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Stock Market Today

  • Geiger Counter Ltd Buys Back 19,069 Shares at 63.95p Each
    July 1, 2026, 4:59 AM EDT. Geiger Counter Ltd repurchased 19,069 ordinary shares on June 30, 2026, paying an average of 63.95 pence per share. That price is about a 7% discount to fully diluted value. The company said the shares go into Treasury as part of an ongoing program. Since March 11, 2026, the group has repurchased 7,392,222 shares under the plan. After this buyback, Geiger Counter has 173,641,396 ordinary shares outstanding, with 118,410,966 voting shares and 55,230,430 in Treasury. The company said the buybacks are meant to keep capital structure and shareholder value on track.
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