D-Wave Quantum (NYSE: QBTS) and Rigetti Computing (NASDAQ: RGTI) have emerged as two of the most closely watched pure-play quantum computing stocks on Wall Street.
Quantum computing remains years behind artificial intelligence in its march toward commercial viability, yet investors are already positioning themselves ahead of what could be a transformative shift.
A key differentiator between the two companies came in May, when D-Wave was among a handful of firms selected to receive $100 million in U.S. government funding, a significant vote of confidence in its technology.
Rigetti was not awarded any of that government funding, leaving it without that particular financial endorsement as the industry continues to develop.
On the revenue front, Rigetti closed out the most recent quarter with higher revenue than D-Wave, though D-Wave’s first-half backlog surged 1,120% year over year to reach $35.5 million.
That backlog figure signals strong demand momentum for D-Wave, even though not all of the contracted revenue is expected to be realized within the next twelve months.
Rigetti holds a strong balance sheet, carrying $569 million in cash, equivalents, and saleable investments with no debt, though its operations posted an operating loss of approximately $26 million in the first quarter.
D-Wave holds $588 million in cash and marketable securities, providing what analysts consider a comfortable multiyear operational runway despite its faster rate of cash burn.
The two companies also differ sharply in their underlying technology, with D-Wave historically focused on quantum annealing, a specialized approach well suited to solving optimization problems in industries like finance and logistics.
D-Wave’s decision to acquire Quantum Circuits has added superconducting quantum integrated circuits to its portfolio, the same foundational approach used by Rigetti and IBM, broadening its addressable market considerably.
Rigetti’s new Cepheus-1-108Q system currently achieves 2-qubit fidelity of around 99.1%, a figure that, while seemingly high, is considered significantly behind the accuracy levels that competitors like IonQ have reached.
Because D-Wave’s quantum annealing technology is more mature and less architecturally complex, the company has already begun commercializing its systems at a scale that Rigetti has not yet matched.
Neither company is close to posting earnings or offering a meaningful price-to-sales ratio, making cash management and backlog growth the most relevant near-term metrics for investors to track.
Analysts caution that quantum computing remains an emerging and highly uncertain sector, meaning that identifying long-term winners requires a high risk tolerance and a long investment horizon.
Weighing all of these factors together, D-Wave’s government backing, backlog growth, technology breadth, and early commercialization progress position it as the stronger buy of the two at this stage of the industry’s development.
