Rigetti Computing, Inc. (RGTI) is a company at the forefront of quantum computing, a cutting-edge technology that aims to solve problems too complex for even the most powerful traditional supercomputers.

The Business Model (How They Make Money)

Rigetti Computing's core business revolves around developing and providing access to its advanced quantum computing systems. They essentially have two main ways of bringing in money:

1. Selling Quantum Computers and Components: Rigetti designs and builds its own quantum processors and the specialized equipment needed to run them. They sell these "on-premises" systems, like their Novera hardware, directly to customers such as universities, government agencies, and research institutions that want to conduct their own quantum research and development. This revenue stream has been growing, with sales of quantum computers and components contributing significantly to their recent revenue. For example, in the first half of 2026, sales of quantum computers and components brought in $7.1 million, a significant shift from the prior year when this line item was zero.
2. Quantum Cloud Services and Collaborative Research: Rigetti also offers access to its quantum computers over the internet through its "Quantum Cloud Services" (QCS) platform. This allows businesses and researchers to use Rigetti's powerful quantum machines without having to buy and maintain the expensive hardware themselves. They also engage in collaborative research projects, often funded by governments and partners, where they work together to advance quantum technology. While the revenue from direct "access to quantum computing systems" has been small, generating $143,000 in the first half of 2026, the company's overall collaborative research and professional services segment contributed $6.68 million in 2025.

Rigetti is a "full-stack" quantum computing company, meaning they handle everything from designing and manufacturing their quantum chips in their own facility (Fab-1) to developing the software that runs on them. This integrated approach helps them innovate faster and improve their technology.

The Metrics That Matter Most

For a company like Rigetti, which is in an early-stage, high-growth, and capital-intensive industry, certain financial numbers tell a more important story than others.

1. Revenue: This number tells you the total amount of money Rigetti brings in from selling its quantum computers and services. For a company pioneering a new technology, growing revenue is crucial because it shows that customers are increasingly adopting their products and services. In 2025, Rigetti's total revenue was $7.1 million. More recently, for the three months ending June 30, 2026, their revenue was $5.1 million, showing significant growth compared to the same period in the prior year. Watching this number grow indicates that Rigetti is successfully bringing its quantum technology to market.
2. R&D Expenses (Research & Development Expenses): This metric shows how much money Rigetti is pouring back into creating new and better quantum technology. For a company in a cutting-edge field like quantum computing, continuous innovation is key to staying competitive. High R&D spending is expected and necessary for their long-term success. In the second quarter of 2026, Rigetti's R&D expenses were $20.7 million, a 53% increase from the previous year, highlighting their commitment to advancing their technology.
3. Net Income (or Net Loss): This is the company's bottom line – how much money is left after all expenses, including taxes, are paid. Since quantum computing is still developing, Rigetti is currently investing heavily and is not consistently profitable. Therefore, this metric often shows a "net loss." Understanding the size of this loss helps investors gauge how much cash the company is burning as it builds its business. For the full year 2025, Rigetti reported a GAAP net loss of $216.2 million. In the second quarter of 2026, the GAAP net loss was $52.6 million.
4. Cash, Cash Equivalents, and Available-for-Sale Investments: This represents the total amount of readily available money the company has. Because Rigetti is spending heavily on R&D and operations while not yet consistently profitable, having a strong cash balance is vital. It acts as a "runway" to fund their operations and development until they can generate consistent profits. As of June 30, 2026, Rigetti had a substantial $541.3 million in cash, cash equivalents, and available-for-sale investments, providing them with significant financial flexibility.
5. Operating Cash Flow: This metric shows how much cash the company's core business activities are generating or using up. For a growth company like Rigetti, it's common to see negative operating cash flow, meaning their day-to-day operations are consuming cash as they invest in growth. This is different from net income because it focuses purely on cash movements. In 2025, Rigetti had an operating cash outflow of $58.5 million. For the first half of 2026, the operating cash outflow was $32.0 million. This metric helps investors understand how much cash the company needs to fund its ongoing operations.

How to Value This Company

For a company like Rigetti Computing, which is still in its early growth phase and not yet consistently profitable, the P/Sales (Price-to-Sales) ratio is the most relevant valuation metric.

Here's why:

• What it is: The P/Sales ratio compares the company's total stock market value (its "market capitalization") to its total revenue over the past year. It essentially tells you how much investors are willing to pay for each dollar of the company's sales.
• Why it's best for Rigetti: Since Rigetti is investing heavily in research and development and is not yet making a profit (meaning its Net Income is negative), traditional valuation metrics like the P/E (Price-to-Earnings) ratio wouldn't be useful. The P/Sales ratio allows investors to value the company based on its ability to generate sales, which is a key indicator of market acceptance and future potential for a growth company. A higher P/Sales ratio suggests investors have high expectations for future revenue growth, while a lower ratio might indicate the stock is considered "cheaper" relative to its current sales. For Rigetti, with its small but growing revenue base, this ratio helps gauge investor sentiment about its long-term prospects in the quantum computing market.