IonQ

Everyone wants to own quantum computing stocks. Companies like IonQ (NYSE: IONQ) are up hundreds of percent in the last year, with the aforementioned stock now at a market cap of $25 billion while generating less than $100 million in revenue. Quantum computing could drive huge gains in productivity if the technology is ever commercialized, but today, IonQ is a highly speculative company with little to no business model. This makes it an incredibly risky stock to own.

Here are two stocks not betting on a speculative science fiction future, but creating value in the present. Both Remitly Global (RELY -3.13%) and Portillo’s (PTLO -2.76%) will be larger than IonQ in five years’ time. Here’s why you should add them to your portfolio over any quantum computing stock.

Remitly’s disruptive opportunity

Remitly Global has moved in the opposite direction from IonQ in 2025. Shares of the remittance provider are off 42% from highs set earlier in 2025, while IonQ is up 78% year to date (YTD) and just reached a new all-time high.

Investors are nervous about Remitly because of the immigration crackdown in the United States, which may reduce cross-border payments from the United States to Mexico and other Latin American countries. This is Remitly’s core business as a mobile disruptor to the legacy players, such as Western Union. Fears are also rising due to a new tax on remittance payments, although it is just a 1% tax and likely not to greatly impact payment flows.

Despite these worries, Remitly has posted strong growth throughout 2025. Revenue was up 34% year over year last quarter, with 40% growth in send volume. Not only is Remitly completely disregarding immigration fears for remittance demand, but it is also taking a ton of market share from legacy players due to its low fees and easy-to-use mobile application.

What’s more, Remitly is starting to get profitable. On $1.46 billion in trailing revenue, the business generated an earnings before interest and taxes (EBIT) of $27 million, with plenty of room to increase its operating leverage over time. Compare that to IonQ with minimal revenue and huge operating losses, and Remitly looks like a company that should have a larger market cap than any quantum computing stock.

Image source: Getty Images.

Portillo’s expansion plans

Portillo’s is a restaurant chain that sells Chicago-style street food, such as hot dogs and Italian beef sandwiches. It has begun to expand to other markets such as Texas and Florida with average success, as some of its restaurant volumes have been hit by a broad slowdown in consumer spending at restaurants in 2024 and 2025.

Despite this, Portillo’s is poised to grow substantially in the years ahead. It is planning to slowly grow its presence in new states around the country, bringing this beloved Chicago brand to a national stage. Last quarter, Portillo’s posted just 3.6% annual revenue growth, but that is due to the fact that its new store openings are going to be weighted to the back half of 2025. With the company planning to have just around 100 restaurant locations at the end of this year, there is still a huge runway for the concept to expand to new metropolitan areas in the United States.

Portillo’s has a market cap of just $464 million today. Investors may look at this market capitalization compared to IonQ and think it is impossible for the restaurant operator to surpass the $25 billion stock within five years. But let’s truly compare the underlying financials to show why IonQ is grossly overvalued at its current price.

Over the last 12 months, Portillo’s generated $65 million in EBIT on $728 million in revenue. IonQ generated just $53 million in revenue and lost $351 million (it has never been profitable). Portillo’s may not surpass a $25 billion market cap in five years, but it will be larger than IonQ because IonQ does not deserve anything close to a $25 billion valuation.

Buy Remitly and Portillo’s. Avoid IonQ and other quantum computing stocks. Your portfolio will thank you five years from now.

For the better part of the last three years, seemingly nothing has sparked investor interest quite like the evolution of artificial intelligence (AI). Empowering software and systems with the tools to make split-second decisions without human intervention, as well as to become more proficient at their tasks over time, is viewed as a game-changing technology for most industries around the globe.

Over the last three decades, there’s pretty much always been a next-big-thing trend or technology to captivate the attention and capital of Wall Street and investors. Prior to AI, there was the advent of the internet, genome decoding, nanotechnology, 3D printing, blockchain technology, and the metaverse, to a name a few key trends.

But in rare instances of outsize optimism on Wall Street, two or more game-changing trends can coexist, as we’re witnessing now with the dual rise of AI and quantum computing.

Image source: Getty Images.

The four biggest pure-play quantum computing stocks — IonQ (IONQ 0.46%), Rigetti Computing (RGTI 5.30%), D-Wave Quantum (QBTS 2.00%), and Quantum Computing (QUBT -0.81%) — have rallied between 700% to 5,130%, respectively, over the trailing year (as of Oct. 3). Though optimism is readily apparent, there’s no denying that the time to be fearful when others are greedy has arrived for these four stocks.

What is quantum computing, and why are investors so excited about it?

Quantum computing relies on quantum mechanics to solve complex problems that traditional computers can’t do. What makes quantum computing so exciting is its many real-world possibilities.

For example, quantum computers can be used to run simulations to determine how molecules would behave. These interactions can be quantified to narrow best courses of actions when developing drugs and targeting hard-to-treat diseases. Think of it as genome decoding that’s been ramped up to improve the likelihood of success when developing novel therapies.

Quantum computers can also be deployed to vastly improve cybersecurity solutions. This technology can potentially break existing encryption methods and lead to the development of quantum-resistant solutions that create lock-tight protections for cloud-based systems and end users.

But perhaps the most exciting aspect of quantum computing is what it might be able to do for the AI revolution. Quantum computers can speed up the process by which AI algorithms help software and systems “learn” and become more proficient at their tasks. Training large language models could occur significantly faster with quantum-capable solutions.

Based on one of Wall Street’s lofty estimates, which comes courtesy of Boston Consulting Group, quantum computing can create between $450 billion and $850 billion in global economic value 15 years from now. This high-ceiling estimate corresponds with substantial forward-year sales growth forecasts for the aforementioned pure-play quantum computing stocks:

• IonQ: projected sales growth of 87% in 2026
• Rigetti Computing: projected sales growth of 161% in 2026
• D-Wave Quantum: projected sales growth of 56% in 2026
• Quantum Computing: projected sales growth of 412% in 2026

Though optimism is through the roof, billionaire Warren Buffett’s famous investing advice rings loud: “Be greedy when others are fearful, and be fearful when others are greedy.”

Image source: Getty Images.

The time to be fearful with quantum computing stocks is here

Berkshire Hathaway‘s billionaire boss Warren Buffett has absolutely crushed the benchmark S&P 500 over six decades by sticking to this ethos. He pounces when fear creates advantageous price dislocations and sits on his proverbial hands (or sells shares of existing holdings) when valuations no longer make sense. This latter scenario encompasses the need to be fearful when others are being greedy.

There’s no denying that, on paper, quantum computing offers a compelling long-term growth story. The possibility of improving drug development, cybersecurity, supply chains, financial modeling, and AI algorithms, among other use cases, offers intrigue.

But there’s also a long list of reasons why, if you own shares of IonQ, Rigetti Computing, D-Wave Quantum, and/or Quantum Computing, cashing in some or all of your chips right now makes complete sense.

To begin with, history hasn’t exactly been kind to game-changing technologies in their early expansion phase. Looking back more than 30 years, there hasn’t been a next-big-thing trend that’s avoided an eventual bubble-bursting event. Put in another context, investors and businesses have repeatedly overestimated the early stage adoption rate and/or utility of these newer technologies, leading to eventual disappointment.

While I’ve made this same argument with AI, it rings 100 times truer when it comes to quantum computing. Whereas AI hardware is flying off the proverbial shelf, and Wall Street’s most-influential businesses are eagerly deploying AI solutions, quantum computing utility is still very minimal. All the hallmarks of a bubble are firmly in place.

Secondly, these four pure-play stocks are all losing money hand over fist on an operating basis and aren’t particularly close to demonstrating their operating models are viable. Through the first-half of 2025, IonQ’s operating loss more than doubled to $236.3 million from the prior-year period, while Rigetti Computing’s operating loss jumped 27%.

IONQ PS Ratio data by YCharts.

To expand on this point, all four pure-play stocks are valued at price-to-sales (P/S) ratios that absolutely scream “bubble!” Companies on the leading edge of prior next-big-thing trends peaked at P/S ratios ranging from 30 to 40, with a little wiggle room in each direction. The trailing-12-month P/S ratios of Wall Street’s four quantum computing superstars are:

• IonQ: 319
• Rigetti Computing: 1,282.2
• D-Wave Quantum: 375.6
• Quantum Computing: 11,612.3

In no universe do the multibillion-dollar valuations currently assigned to these four stocks justify the relative pittance in continuous sales they’re generating. It’s another sign of a seemingly imminent bubble-bursting event.

The final reason investors should be fearful with these pure-play quantum computing stocks is because the “Magnificent Seven” have deeper pockets and an inside edge to the infrastructure that can fuel an eventual quantum computing revolution. Although companies like IonQ have landed meaningful partnerships, Mag-7 companies have the ability to aggressively spend on quantum computing solutions that may eventually lessen the need for hardware and software solutions from companies like IonQ, Rigetti, D-Wave, and Quantum Computing.