Although the growth rates coming out of the quantum computing segment look genuinely spectacular on paper, Wall Street has stood on this exact ledge before, and the fall has never been gentle. IonQ (NYSE:IONQ | IONQ Price Prediction) posted Q1 FY26 revenue of $64.67 million, up 755% year over year. Rigetti Computing (NASDAQ:RGTI) nearly tripled sales to $4.40 million. D-Wave Quantum (NYSE:QBTS) reported a bookings figure of $33.4 million, roughly 2,000% higher than the prior year. Quantum Computing (NASDAQ:QUBT) reported a 9,364.1% revenue jump, driven almost entirely by acquisitions.
The percentages are eye-popping. However, the market capitalizations perched on top of them are what should give a retirement-minded investor pause.
What is particularly notable is how closely today’s setup resembles previous Wall Street love affairs. IonQ carries a market cap of roughly $19.2 billion against FY25 revenue of $130.02 million, or roughly 148 times sales. Alpha Vantage pegs its trailing price-to-sales at 109 and its EV-to-revenue at 96. Rigetti trades at a trailing price-to-sales of 465. D-Wave’s trailing price-to-sales is 873. Quantum Computing’s comes in at 505 on trailing revenue of $4.3 million.
Those multiples reflect narratives far more than established businesses.
The Long Memory: What Happened Last Time
Wall Street has run this play repeatedly. In November 2013, 3D printing was going to remake manufacturing. 3D Systems (NYSE:DDD) peaked near $63 that month. It closed on July 1, 2026, at $2.96, a drawdown of 95.3% from that peak. Stratasys (NASDAQ:SSYS), the sector’s other flagship, closed at $8.48 on July 1, 2026, well off its own $12.85 high in early February 2025 and a shadow of its 2014 highs. The technology worked. It still works. The stocks never came back for the people who bought the hype.
The cannabis mania told the same story. Tilray (NASDAQ:TLRY) vaulted to roughly $300 in September 2018. It closed at $4.43 on July 1, 2026, and only after a 1-for-10 reverse split executed on December 2, 2025. The dot-com wreckage was harsher still: Cisco fell roughly 89%, JDS Uniphase roughly 99%. In every case the revolutionary technology narrative was correct. The valuations proved unsustainable.
The Numbers Behind the Story
Quantum’s operating reality is where the historical mirror gets uncomfortable. IonQ’s Q1 FY26 operating loss was $271.5 million, with an operating margin of negative 420%. FY25 net loss came in at $512.12 million. Rigetti’s FY25 revenue actually shrank 34.3% to $7.09 million, with a net loss of $216.21 million. D-Wave’s FY25 bookings, the leading indicator management points at, declined 22% to $18.7 million. QUBT’s FY25 revenue totaled $682,000, and its Q1 FY26 gross profit was actually a loss of $721,000 because cost of revenue exceeded sales.
Meanwhile, the commercialization clock keeps stretching. On The AI Investor Podcast, Eric Jhonsa noted that Jensen Huang “made some noise by like saying that … quantum computing is probably at least 15 years away from being … commercialized and maybe longer,” with host Eric Bleeker adding that today’s quantum names resemble “deeply unprofitable dot-coms” from 2000 like “Webvan and eToys and Pets.com.” D-Wave’s own roadmap targets 100 logical qubits by 2032.
Retail Has Already Started to Wobble
Reddit sentiment on IonQ registered peak bullish scores of 78 in early June 2026 before cooling to 54 by June 24, 2026. Rigetti’s chatter followed the same arc, sliding from bullish 72-78 readings on June 3 to neutral 48-52 by late June. Price action confirmed the mood: IonQ fell 25.8% in the past month to $51.40, Rigetti dropped 27.1% to $18.68, D-Wave gave back 19.5% in that time, and Quantum Computing is now down 49.4% over one year to $9.43.
IonQ’s CEO Niccolo de Masi told investors, “IonQ has begun 2026 with strong momentum, delivering our fourth consecutive quarter of record-breaking results and the biggest quarter in our company’s history.” That is likely true. It was also true of 3D Systems in 2013, and of Tilray in 2018.
The Verdict
Long term, Wall Street tends to reward genuinely useful technology. The internet did change the world. 3D printing did reshape manufacturing. Cannabis did become a legal industry. In each case, the companies that survived the shakeout emerged stronger a decade later. The catch is that investors who paid 148x, 358x, 714x, or 3,100x sales at the peak rarely got to enjoy that recovery. For a cautious, retirement-skewing reader, the pattern is the prediction: revolutionary technology plus microscopic revenue plus astronomical multiples have a remarkably familiar ending. History is not obligated to rhyme, but it usually does.
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