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Quantum Computing Inc

QUBT

Market cap $1.81B

8.01 USD

+0.05

0.63%

At close Updated Sep 4, 4:00 PM EDT

Pre-market

After hours

8.01

0.00

0%

1 day

0.63%

5 days

-1.11%

1 month

-13.22%

3 months

-28.42%

6 months

-1.72%

Year to date

-27.25%

1 year

-45.73%

5 years

16.76%

10 years

16.42%

About: Quantum Computing Inc is an integrated photonics and non-linear quantum optics company to develop and deliver machines for quantum computing, reservoir computing, and remote sensing, imaging, and cybersecurity applications based on patented and proprietary photonics technology. Its products are designed to operate at room temperature and low power at an affordable cost. The Company's portfolio of core technologies and products offers capabilities in the areas of high-performance computing, artificial intelligence, and cybersecurity, as well as remote sensing applications.

Employees: 77

Technology Computer Hardware

News

Positive

Neutral

Negative

Sentiment 3-Months

Positive 55.8%

Neutral 29.9%

Negative 14.3%

Zacks Investment Research

QUBT Bets on Scale as Rising Costs Weigh on Profitability

Quantum Computing is betting on higher production volumes and scalable manufacturing as rising costs and gross losses weigh on profitability.

QUBT Bets on Scale as Rising Costs Weigh on Profitability

Will the Most Successful Quantum Firms Be Software Companies?

The argument for quantum computing investors is largely focused on hardware, as companies race to achieve increasingly impressive qubit counts and error rates. Although technologies are still largely untested in commercial applications, there is also a great deal of debate over which architecture—from annealing to trapped-ion and more—is most promising.

Will the Most Successful Quantum Firms Be Software Companies?

The Motley Fool

Prediction: If a September Sell-Off Hits Speculative AI Stocks, Quantum Computing Falls First

During roughly 74% of days in 2026 when the tech sector broadly declined, quantum computing stocks fell harder than Nasdaq-100. IonQ, Rigetti Computing, and D-Wave Quantum are trading at extremely high forward sales multiples.

Prediction: If a September Sell-Off Hits Speculative AI Stocks, Quantum Computing Falls First

Zacks Investment Research

QUBT vs. QBTS: Which Quantum Stock Should You Buy or Sell Now?

QUBT and QBTS both face post-earnings weakness, but stronger revenue growth, liquidity and lower valuation give QUBT an edge.

QUBT vs. QBTS: Which Quantum Stock Should You Buy or Sell Now?

Quantum Computing Inc. To Attend Lake Street Capital Markets 10th Annual Best Ideas Growth (Big10) Conference

HOBOKEN, N.J., Aug. 31, 2026 /PRNewswire/ -- Quantum Computing Inc. ("QCi" or the "Company") (Nasdaq: QUBT), a vertically integrated quantum company pioneering photonics and semiconductor manufacturing, today announced that Dr. Yuping Huang, Chief Executive Officer and Chris Roberts, Chief Financial Officer, will participate in the Lake Street Capital Markets 10th Annual Best Ideas Growth (Big10) Conference being held on September 10 at the Metropolitan Club in New York City.

Quantum Computing Inc. To Attend Lake Street Capital Markets 10th Annual Best Ideas Growth (Big10) Conference

Zacks Investment Research

NVIDIA's $108B AI Forecast Boosts Quantum: QNT, QUBT to Gain?

NVIDIA's $108B forecast highlights AI-quantum convergence, putting Quantinuum and QUBT in focus as hybrid computing commercialization advances.

NVIDIA's $108B AI Forecast Boosts Quantum: QNT, QUBT to Gain?

Zacks Investment Research

QUBT vs. RGTI: Which Quantum Stock Is the Better Pick Now?

Quantum Computing's photonic technology, customer traction and foundry expansion bolster its case, though high spending and losses remain key concerns.

QUBT vs. RGTI: Which Quantum Stock Is the Better Pick Now?

This Quantum Stock Is Puzzling. Why Its Growth Surge Is Mostly an Illusion.

One analyst is overlooking Quantum Computing Inc.'s bizarre corporate history and persistent financial challenges for a surprising reason.

This Quantum Stock Is Puzzling. Why Its Growth Surge Is Mostly an Illusion.

Zacks Investment Research

What's Driving Quantum Computing's Long-Term Growth Potential?

QUBT's NHanced and NuCrypt acquisitions expand manufacturing, photonics and IP capabilities, supporting long-term growth prospects.

What's Driving Quantum Computing's Long-Term Growth Potential?

Why Quantum Computing Is a Threat to Cybersecurity

The math behind encryption will be no match for quantum computers, forcing organizations to rethink cybersecurity. Here's what to know.

Why Quantum Computing Is a Threat to Cybersecurity

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