Quantum Computing Stocks: Quantinuum To Start Trading Thu…

The article discusses the rise of quantum computing stocks, particularly focusing on Quantinuum's recent IPO and its implications in the technology sector. Quantinuum is set to start trading after raising $1.68 billion, valuing the company at $15.6 billion. While quantum computing has potential for growth, it still faces challenges in profitability and achieving robust error correction for its qubit technology. Other companies like IonQ and D-Wave Quantum are also noted for their high valuations. The article highlights that with increasing attention from investors and government funding, such as a recent $2 billion initiative, quantum computing could be a significant technological shift in the coming years.

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Quantinuum ( QNT) stock is expected to start trading on Thursday after the Honeywell International- controlled ( HON) company launches its initial public offering. The number of quantum computing stocks continues to increase, although the companies are still unprofitable as they aim to commercialize the technology.

Broomfield, Colo.-based Quantinuum raised $1.68 billion in an upsized IPO. The company priced 28 million shares at $60, up from initial plans to sell about price shares for $45 to $50. The IPO puts Quantinuum's valuation at $15.6 billion.

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Is Quantum Computing The Next Big Tech Shift?

Quantum computing is advancing inside research labs, but real commercial impact remains years away. Here’s what experts say matters for investors today.

Quantum Computing Stocks: SPAC Deals

Infleqtion ( INFQ), Xanadu ( XNDU) and Horizon Quantum ( HQ) have gone public in recent months. Other quantum companies expected to go public later in 2026 include IQM, Pasqal, Terra Quantum, and Seeqc. They will reportedly merge with special purpose acquisition companies.

SPACs, also called blank-check vehicles, raise money by going public, with the purpose of purchasing companies. A SPAC merger enables quantum computing firms to raise capital, bypassing an initial public offering.

In 2025, Quantinuum raised about $600 million ‍from investors, including Nvidia's ( NVDA) venture capital arm. The company aims to be a "full-stack" technology provider "spanning hardware, middleware, compilers, algorithm libraries and application frameworks."

Quantum computing works on a subatomic level and uses exotic technologies, like supercold superconductor chips. It aims to solve problems too complex for today's classical computers, such as simulating chemical reactions. Traditional computers use electronic circuits to store information as digital zeros and ones. Instead, quantum machines rely on processors known as "qubits."

There are many approaches to quantum computing, including qubit technologies that use superconducting, ion-trapped, annealing and photonic methods.

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Quantum computing stocks have been volatile. Shares rallied in May amid the Trump administration's industry funding announcement.

For quantum computing to reach its potential, logical qubits will require robust error correction. The race is on to build "fault-tolerant" quantum computers that scale up and correct errors, allowing for complex, sustained calculations.

Quantum Computing Stocks And Analysis

IBM Stock Adds To Quantum-Powered Rally. Analyst Says Don't Overlook Software Growth. IBM stock jumped in morning trading, adding oomph to a big rally that started with a $1 billion award from the federal government for quantum computing late last month. On Monday, analysts... Read More

Quantum Computing Stocks: Quantinuum Boosts IPO Offering Honeywell International's quantum computing unit Quantinuum, which has filed for an initial public offering, will likely start trading in early June as the number of quantum computing stocks continues to swell. Quantinuum... Read More

Quantum Stocks Surge On U.S. Funding. Were Google, Microsoft, IonQ Snubbed? Quantum computing stocks staged a big rally on the U.S. government's announcement last week of a $2 billion funding initiative for the industry. But some notable players in quantum computing technology —... Read More

Follow Reinhardt Krause on X, formerly Twitter, @reinhardtk_tech for updates on artificial intelligence, cybersecurity and cloud computing.

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Quantum Computing Stocks: Quantinuum To Start Trading Thursday

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