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Quantinuum stock is expected to start trading on Thursday after the Honeywell-controlled company launches its IPO.

Quantinuum IPO Frenzy Sparks Selloff Across Quantum Computing Stocks

Shares of Quantinuum rose 13.3% in their Nasdaq debut, fetching a valuation of $17.63 billion as Honeywell's quantum computing company became the latest to benefit from robust investor demand. Breakthroughs in the fast-growing technology have spurred bets that quantum machines could eventually outperform conventional computers ‌on certain complex tasks. Quantinuum, like its rival IonQ, makes machines that hit trapped ions with lasers to perform quantum computations, where data can be either 1 or a ​0, as with conventional computers, or both a 1 and a 0 at once.

Quantinuum stock, with the ‘QNT’ symbol, will begin trading on the Nasdaq Global Market on Thursday.

From SpaceX to Anthropic, the pipeline of blockbuster initial public offerings is moving fast. The Honeywell -backed upstart is slated to go public on Thursday, according to Nasdaq, meaning the IPO likely will be priced later Wednesday.

D-Wave noted a second funding award from the government in May, as the quantum computing company continues to build on its R&D efforts.

Quantinuum is set to make the biggest trading debut for any quantum company this year. As anticipation rises, the company is upsizing its initial public offering to as much as $1.46 billion. Quantinuum indicated Monday that it plans to offer 26.5 million shares at prices ranging from $53 to $55 each, compared with earlier plans to sell roughly 21 million shares for $45 to $50 each.

IBM will receive $1 billion in funding to set up a quantum computing foundry.

Quantinuum, which has filed for an IPO, will likely start trading in early June as the number of quantum computing stocks continues to swell.

Today, May 26, 2026, investors balance new federal quantum backing against valuation risks and a new challenge to quantum superiority.

The federal government plans to provide hundreds of millions of dollars to a number of quantum firms to support domestic foundry and technology development.

Federal funding has brought quantum computing stocks back on Wall Street’s radar. The news already lifted IonQ shares, but a short squeeze could add even more fuel to the rally if bearish traders rush to cover positions.

This newly public quantum company recently won a $100 million government contract.

The quantum computing space recently got a major vote of confidence from Washington, and Wall Street wasted no time responding. IonQ shares surged over 12% on May 21 after the Trump administration unveiled plans to pour more than $2 billion into quantum computing companies. The move sent the ...

Shares of Rigetti Computing (NASDAQ:RGTI), Quantum Computing Inc. (NASDAQ:QUBT), D-Wave Quantum (NYSE:QBTS), and IonQ (NYSE:IONQ) are extending Thursday’s sector rebound into a second straight session. In morning trading, RGTI shares are up 17%, QUBT shares are up 14%, QBTS shares are climbing 13%, and IONQ shares are rising 8%. It’s no longer a one-day bounce. ... Rigetti Surges 17%, Quantum Computing Inc. Soars 14%, D-Wave Pops 13%, IonQ Rises 8%: The Quantum Bounce Becomes a Rally

Yesterday, the U.S. Department of Commerce injected massive momentum into the quantum computing sector, announcing over $2.0 billion in federal incentives under the CHIPS and Science Act across nine quantum computing companies. D-Wave (QBTS) secured a $100 million letter of intent to accelerate domestic system fabrication, granting the federal government an equity stake. The stock surged immediately on the news, reflecting renewed investor confidence in sovereign backing for quantum infrastructu

Pure-play quantum stocks including D-Wave, Infleqtion, and Rigetti were also rising ahead of Friday’s opening bell.

Record Q1 revenue, raised 2026 guidance, and the pending SkyWater acquisition give IonQ company-specific markers to watch as federal funding headlines draw attention back to quantum computing.

New federal quantum computing funding plans propelled this quantum specialist higher, today, May 21, 2026.

Quantum sector ignites on $2B federal backing aimed at beating China in tech race

Arqit Quantum (NASDAQ:ARQQ) reported higher first-half fiscal 2026 revenue and said it is seeing increased commercial activity as governments, telecom operators and defense-related customers evaluate post-quantum cybersecurity needs. Chief Executive Officer Andy Leaver told investors that the marke

Stocks were mostly higher this week as investors were reminded that earnings are the signal; inflation and geopolitics is noise

Tech stocks are falling today, and IonQ is feeling the pressure.

Rigetti Computing (NASDAQ:RGTI) keeps grabbing quantum computing headlines on the strength of its 108-qubit Cepheus-1-108Q system and a cash-stuffed balance sheet. But here’s what you should actually be watching. The numbers underneath the story are ugly. Rigetti carries a $6.34 billion market cap against full-year 2025 revenue of just $7.09 million, which itself declined 34.31% ... Rigetti Has a $6 Billion Market Cap and $7 Million in Revenue. Here Are the Two Stocks Worth Owning Instead

Quantum Computing stock soared on better than expected revenue.

Quantum computing has minted few clean winners, but IonQ (NYSE:IONQ) is making the strongest case for category leadership after a Q1 that blew past every line of guidance. Our 24/7 Wall St. price target reflects a model that combines forward earnings power with proprietary factor adjustments, and on IONQ the signal is unusually loud. The ... Prediction: IonQ Price Target Soars With a 383% Upside in 12 Months

Honeywell's Quantinuum has filed for an IPO and, for a change, investors in quantum computing stocks may get more financial disclosure.

Shares of Quantum Computing Inc. fell 38% last year, but first-quarter earnings mark a shift in investor sentiment.

Shares of Quantum Computing Inc. fell 38% last year, but first-quarter earnings mark a shift in investor sentiment.

IonQ stock rallies as SkyWater shareholders approve merger. But is it already too late to invest in IONQ shares, that’s up over 100% versus their year-to-date low?