Shares of the four largest publicly traded quantum computing companies, often called the “Quantum Four,” are seeing a strong surge over the past 24 hours.
These four companies are:
* D-Wave Quantum Inc. (NYSE: QBTS)
* IonQ, Inc. (NYSE: IONQ)
* Quantum Computing Inc. (Nasdaq: QUBT)
* Rigetti Computing, Inc. (Nasdaq: RGTI)
Yesterday, all of them posted healthy gains in the stock market. Today, in premarket trading, their share prices continue to climb higher.
How the Quantum Four stocks moved
D-Wave Quantum (QBTS)
D-Wave was the biggest winner yesterday. Its stock jumped nearly 19 percent, closing at 22.54 dollars. In premarket trading today, it is already up another 3.2 percent.
IonQ (IONQ)
IonQ shares rose over 5 percent yesterday, ending the day at 65.44 dollars. Today, the stock is up another 5.5 percent in premarket trading, making it one of the strongest movers.
Rigetti Computing (RGTI)
Rigetti shares surged 9.95 percent yesterday, closing at 21.99 dollars. Today, they are continuing their upward move, rising another 3.7 percent before the market opens.
Quantum Computing Inc. (QUBT)
QUBT shares increased nearly 5 percent yesterday to 17.71 dollars. In premarket trading today, they are up an additional 4.3 percent.
This across-the-board rise shows investors are paying renewed attention to quantum computing stocks.
Why are quantum computing stocks rising
There is no single clear reason for the sudden surge, but two recent developments in the industry are likely fueling the excitement.
1. Expansion of the Quantum-in-Space Collaboration
The US Department of Energy’s Office of Technology Commercialization announced yesterday that it is expanding the Quantum-in-Space Collaboration. This is a joint project between the government and private companies.
The program focuses on using quantum technologies in space, especially for advanced communication systems and cybersecurity. This research could play a big role in secure data transmission, navigation, and even protecting satellites from cyber threats.
As part of the announcement, IonQ was revealed as a new signatory, joining the collaboration alongside the Electric Power Board of Chattanooga (EPB) and aerospace company Honeywell. This marks a big step for IonQ, showing government recognition and trust in its quantum capabilities.
2. IonQ’s acquisition of Vector Atomic
On the same day, IonQ also announced plans to acquire Vector Atomic, a California-based company that develops quantum sensors for navigation. These sensors are highly valuable because they allow precise navigation without relying on GPS, which can be disrupted or jammed.
Vector Atomic already holds around 200 million dollars in US government contracts, which adds credibility and potential revenue to IonQ’s portfolio. By acquiring the company, IonQ is strengthening its position in both quantum computing and quantum sensing.
Bigger picture: why quantum stocks are back in focus
The rally in the Quantum Four stocks reflects a broader trend. Investors are once again showing strong interest in quantum computing, a technology that many believe could be as transformative as artificial intelligence.
Quantum computers operate very differently from traditional computers. Instead of relying on bits, which are 0s and 1s, they use qubits, which can exist in multiple states at once. This makes them capable of solving certain types of problems much faster — from simulating molecules for new drugs to optimizing supply chains or improving cybersecurity.
Although the technology is still in its early stages and faces many challenges, government support, corporate partnerships, and acquisitions like IonQ’s latest deal are signs of growing momentum.
Conclusion
The strong performance of D-Wave, IonQ, Rigetti, and Quantum Computing Inc. shows that the Quantum Four are gaining renewed investor confidence. With new collaborations, government-backed projects, and strategic acquisitions, these companies are positioning themselves at the front of the race to make quantum computing a practical and profitable reality.

