Over the past month, quantum computing stocks have been hit hard as investors pulled capital from high-multiple, pre-profit technology names across the board.
IonQ (NYSE: IONQ) shares are down 39% over the trailing month, with the stock trading around $32.86 midday Wednesday, making it one of the sector’s steepest decliners.
Rigetti Computing (NASDAQ: RGTI) and D-Wave Quantum (NYSE: QBTS) shares are each down 30% over the same period, while Quantum Computing (NASDAQ: QUBT) has fallen 24% in a month.
The selloff looks less like a company-specific story and more like a broad sentiment reset across speculative technology, as AI-infrastructure and semiconductor valuations were simultaneously re-priced.
Quantum pure-plays sit at the far end of the risk spectrum, and when multiples contract, names anchored to future-scale narratives tend to absorb the biggest losses.
IonQ carries a trailing 12-month P/E ratio of 84.26x, while Rigetti, D-Wave, and Quantum Computing posted no meaningful trailing P/E ratios given their unprofitable operating histories during that period.
IonQ posted Q1 2026 revenue of $64.67 million, up 755% year over year, yet its adjusted EBITDA loss guidance for the full year sits at between -$330 million and -$310 million.
D-Wave reported Q1 2026 revenue of $2.86 million, down 81% year over year on lumpy system-sale timing, though bookings jumped 2,000% year over year, a volatile combination that has frustrated investors.
Despite the pain, several bullish catalysts remain active, complicating any straightforward bearish thesis for the sector.
IonQ received final regulatory approval to complete its acquisition of SkyWater Technology (NASDAQ: SKYT), a large U.S.-based semiconductor foundry, with closing expected on Friday, July 31, framing the deal as a vertically integrated, full-stack quantum platform with secured domestic chip supply.
D-Wave shares rallied earlier in the month after AT&T (NYSE: T) agreed to expand use of D-Wave’s quantum computing technology across its network operations, lifting Rigetti and sector peers in sympathy.
AT&T stock is up 10% over the past month, a reminder that the stable telecom giant operates in a fundamentally different risk category than any of these quantum names.
Policy support has also emerged as a structural tailwind, with the U.S. Department of Commerce signing letters of intent in May to provide more than $2 billion in federal incentives to nine quantum-related companies in exchange for minority equity stakes.
The Defiance Quantum ETF (NASDAQ: QTUM) has held up comparatively better, falling only 16% over the past month, as its broader basket of quantum and adjacent computing names dilutes single-stock volatility, with an expense ratio of 0.4%.
Prediction markets on Polymarket peg IonQ’s odds of beating its next quarterly print at just 6.5%, even as Wall Street analysts maintain an average price target of $68.41 on IONQ stock.
That wide gap between crowd sentiment and sell-side optimism is precisely where the stock’s next meaningful move is likely to be decided in the weeks ahead.
Investors will have several near-term catalysts to watch, including the SkyWater deal close on July 31, IonQ’s Q2 2026 earnings report on August 5, and D-Wave and Rigetti reports scheduled for August 6.
The next two weeks could determine whether this correction represents a temporary pause or the beginning of a deeper, more prolonged reset for IONQ, RGTI, QBTS, and QUBT.
For now, the setup rewards patience, with traders chasing bounces needing to respect the sector’s elevated volatility and long-term investors watching closely for more attractive entry points if de-risking continues into August.
