Rigetti Computing, Inc. (RGTI)

Rigetti Computing is a company that makes quantum computers. Quantum computers are radically different from normal computers. A normal computer uses bits — tiny switches that are either on (1) or off (0). Everything your laptop or phone does comes down to manipulating millions of these binary choices at lightning speed. A quantum computer uses quantum bits, or qubits. A qubit can be on, off, or in a strange state called superposition where it is kind of both at the same time. This lets a quantum computer explore many possibilities at once instead of checking them one by one. For certain types of problems — factoring large numbers, optimizing complex systems, simulating molecules — a quantum computer can be vastly faster than any classical machine. Rigetti’s job is to build those qubits and the systems around them, and to help customers figure out what to do with them. Its shares trade on NASDAQ under the ticker RGTI.

Why quantum matters, and why it is hard

A classical computer is fast because it has billions of transistors all working in parallel. But for certain classes of problems — the hard ones — speed alone is not enough. Imagine you have to find the best route for a delivery truck visiting a hundred cities. A normal computer has to check routes one by one. The number of possible routes is so enormous that even a computer doing a million checks per second would take longer than the age of the universe. A quantum computer can explore huge numbers of possibilities in a single operation because of superposition. That is the dream.

The problem is that building a quantum computer is brutally hard. Qubits are fragile. They have to be cold — near absolute zero — to work properly. Any stray vibration, electrical noise, or heat will destroy the quantum state you are trying to maintain. And the bigger the machine, the harder it is to keep all the qubits coherent long enough to do useful work. Rigetti, like every other quantum-computing company, is fighting against physics itself to build machines that work well enough to be useful.

What Rigetti actually does

Rigetti designs and manufactures quantum processors. The company builds its own qubits using superconducting circuits — essentially, tiny rings of metal kept at temperatures colder than outer space. When the metal is cold enough, electricity can flow through it with zero resistance. This superconducting state is where the quantum magic happens. Rigetti connects these qubits with microwave pulses and measures the results.

The company sells access to its quantum computers through the cloud. Researchers and companies can write programs and run them on Rigetti’s hardware without visiting Berkeley. This lets Rigetti spread the cost of building and maintaining the machines across many users. Rigetti also builds software tools that help customers write quantum programs and figure out how to solve their problems on quantum hardware. This software piece is important because most potential customers do not know quantum programming — it is a brand-new skill set — so software that abstracts away the complexity and lets them think about their business problem is valuable.

Rigetti is also in the hybrid-computing business. A hybrid quantum-classical computer is one where a classical computer (a normal one) and a quantum computer work together. The quantum part solves the part of the problem that quantum computers are good at, and the classical computer handles everything else. This is how quantum computers will likely work in the real world for many years — not replacing classical machines, but working alongside them on specific bottlenecks.

The business model and the road to profit

Rigetti’s revenue comes from several sources. Some comes from cloud subscriptions — customers who pay to run problems on Rigetti’s quantum processors. Some comes from research partnerships and grants, where Rigetti gets paid to collaborate with universities or other companies on quantum research. And some comes from hardware sales and engineering services to companies that want to build their own quantum systems.

None of these revenue streams is big right now. Quantum computing is still in the early stages. There is no product-market fit yet. Rigetti is not making money from customers using quantum computers to run real business problems. Instead, it is making money from researchers exploring what quantum computers can do. This is like the software business in the 1960s — computers existed, a few academics had them, and the real commercial applications had not yet emerged.

This means Rigetti is not yet profitable in the traditional sense. The company burns cash on research and development. It has to, because quantum processors are still improving in every dimension — more stable qubits, longer coherence times, better error correction. The real business model will not exist until quantum computers are good enough that customers will pay a lot of money to use them on real problems. That could happen in five years, or ten, or longer. No one knows.

The competition and the uncertainty

Rigetti is not alone. IBM, Google, IonQ, D-Wave, and others are all building quantum computers. IBM has a lead in the number of qubits it has publicly achieved. Google made waves in 2019 by claiming “quantum advantage” — the ability to solve a specific problem faster on a quantum computer than on any classical machine, however impractical the problem. The competition is fierce and the field is moving fast.

The bigger uncertainty is not who wins the quantum-computing race, but whether quantum computers will matter at all for real business problems. Years of research have not yet produced a quantum algorithm that solves a problem businesses actually care about faster than a classical computer could. Quantum advantage in the lab does not equal quantum advantage in the real world. If quantum computers turn out to be theoretically interesting but practically useless, the whole industry is a failed bet. If they turn out to be transformative — useful for drug discovery, finance, artificial intelligence, logistics — then there is enormous value to capture.

How to research Rigetti

Start with Rigetti’s 10-K filing (SEC CIK 0001838359) to understand the current revenue streams, the cash burn rate, and how much capital the company has left. Pay attention to the composition of revenue — what fraction is from cloud subscriptions, research grants, and partnerships. Watch for announcements of new quantum processors with more qubits and longer coherence times, since that is the metric that will determine whether Rigetti can attract paying customers. Look at the company’s partnerships with cloud providers like Amazon Web Services and Azure, which give Rigetti access to a broad user base for its cloud quantum computing service.

Quantum computing is a bet-the-company story. Rigetti is not paying a dividend. The stock is a moonshot investment in a technology that may or may not work. Read the earnings calls carefully to hear management explain what quantum computers are useful for today and when they expect paying customers to arrive. And be honest with yourself about how much certainty you have that quantum advantage will eventually translate into commercial value. That is the real question.