In the stock market, there's a not-so-subtle difference between investing and speculating. People doing the first are usually looking at an asset and considering its fundamentals and value; those doing the second hope to capitalize on momentum and hype. And while buying speculative stocks can deliver explosive returns over the short term, usually, that strategy will eventually underperform the slower but steadier returns of well-considered investment decisions over the long term.
Rigetti Computing (RGTI 6.43%) might be a great example of this concept. While shares of the quantum computing start-up are still up by about 2,000% in the last 12 months, its rally has begun to crack. The stock has already dropped by about 44% from its all-time high of $56, and it may continue to give back its gains. So what do Rigetti's fundamentals tell us about when it might be a good time to buy the stock?

NASDAQ: RGTI
Key Data Points
The quantum computing industry is still entirely speculative
Quantum computing technology can be used to create a new type of computer that can solve certain unusual types of problems that are unsolvable in any useful period of time by even the fastest classical supercomputers.
If quantum computers can be made practical, reliable, and cost effective, they could revolutionize an array of fields, from drug discovery to cryptography to materials science. They could also help businesses create trillions of dollars in shareholder value. But while quantum computing has been generating a lot of buzz recently, it is still a speculative and uncertain technology. Fundamentally, the underlying physics that makes quantum computers so powerful also makes them incredibly finicky, delicate, and millions of times more prone to errors than the chips powering whatever digital device you're reading this article on. Solving those problems will not be trivial -- nor will it be cheap.
Analysts at McKinsey & Company believe it could take until 2040 or later before one of these devices will be able to function at scale. And while industry leader Alphabet believes it can create a commercially viable quantum computer within five years, investors should take that forecast with a grain of salt. Big tech is not infallible, and management teams have an incentive to err on the side of optimism to keep shareholders happy.
In January, Nvidia CEO Jensen Huang predicted that practical quantum computing could be 20 years away. He later backpedaled from that assertion somewhat after learning that it had led to a sharp pullback in quantum computing stocks.
Yet even if quantum computing eventually has its ChatGPT moment, there is no guarantee that the early movers will rapidly become profitable from an operational perspective. Technical viability is a first step. But it could take many more years after companies reach that milestone before they are able to scale quantum computing into a sustainably profitable business model.
Rigetti has extremely weak fundamentals
With commercially viable quantum computing likely over a decade away, investors should pay close attention to Rigetti Computing's less-than-encouraging operational results. With revenue of just $1.8 million, the company is nowhere close to being able to handle its massive overhead and research and development expenses, which added up to a total of $20.4 million in operating costs last quarter. Rigetti's cash burn could increase over time as it seeks to stay competitive.
To be fair, it's normal for growth-oriented companies to generate losses as they scale up their business models. But Rigetti is arguably in a "pre-growth" phase where its addressable market hasn't even fully materialized yet -- even if it has managed to secure some one-off deals in certain quarters.
Image source: Getty Images.
Rigetti was only able to go public through a reverse merger with a special purpose acquisition company (SPAC), which allowed it to bypass the stricter requirements for an initial public offering on the Nasdaq exchange. While SPACs have given retail investors the ability to buy into the types of businesses that were previously only available to venture capitalists, these companies also carry a higher level of risk than those that came public through conventional means. And SPAC companies as a class now have a clear track record of underperforming their traditional peers.
Keep Rigetti Computing on your watch list
Rigetti Computing is a speculative stock that has soared this fall. So investors should recognize that it faces significant near-term downside risks as the hype fades and people take a closer look at its actual numbers. That said, while Rigetti looks like a poor fundamental investment right now, that doesn't mean it will always be a dud.
Although we don't know precisely when quantum computing will become a commercially viable technology, Rigetti has positioned itself as an early mover in the pick-and-shovel side of the opportunity by making its own quantum chips and processors. Investors should keep the company on their watch lists in case the company's operational results improve over the next few years.