IonQ Falls 7%, D-Wave Dives 8%, Rigetti and Quantum Computing Inc. Plunge 9%: Quantum Stocks Crash on Profit-Taking

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David Moadel

Mon, May 18, 2026 astatine 12:35 PM CDT 5 min read

Quick Read

Quantum stocks are unwinding a assemblage rally driven by beardown net and bullish commentary, with each 4 names showing method overbought conditions that reversed successful lockstep, signaling coordinated profit-taking alternatively than company-specific weakness, though caller competitors from Quantinuum’s upcoming IPO and big-tech incumbents airs longer-term execution risks.
IonQ (IONQ) reported Q1 2026 gross of $64.67M, up 755% twelvemonth implicit twelvemonth with full-year guidance raised to $260M-$270M; D-Wave Quantum (QBTS) disclosed Q1 2026 gross of $2.86M but bookings surged 2,000% to $33.4M.
Rigetti Computing (RGTI) and Quantum Computing (QUBT) each posted triple-digit gross maturation but commercialized astatine utmost valuations (592x and 606x price-to-sales, respectively) with recurring shareholder dilution from stock-funded raises.
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IonQ (NYSE:IONQ) shares are down astir 7%, D-Wave Quantum (NYSE:QBTS) banal is disconnected 8%, and shares of Rigetti Computing (NASDAQ:RGTI) and Quantum Computing (NASDAQ:QUBT) are dropping 10%. No azygous company-specific catalyst is driving the move.

All 4 names reported net implicit the past 2 weeks with beardown gross maturation and bullish commentary, fueling a assemblage rally that present appears to beryllium unwinding. Even IonQ, which entered contiguous up 20.1% implicit the past period and up 15.8% twelvemonth to date, is selling disconnected alongside weaker peers similar D-Wave and Rigetti.

The expert who called NVIDIA successful 2010 conscionable named his apical 10 stocks and IonQ wasn't 1 of them. Get them present FREE.

The one-year representation remains constructive. IonQ shares were up 59.7% implicit the past year, D-Wave Quantum up 84.5%, Rigetti up 54.7%, and Quantum Computing up 13.7%. Today's drawdown trims those gains but doesn't interruption the longer-term uptrend.

Profit-Taking After a Hot Run

Technical readings enactment the profit-taking thesis. IonQ's 14-day RSI peaked astatine 77.95 connected April 20 and spent 7 consecutive sessions successful overbought territory earlier fading to 58.58 by May 15. Quantum Computing's RSI deed 71.09 connected May 12 earlier dropping to 56.61 3 sessions later, a accelerated momentum reversal.

D-Wave's RSI collapsed from 66.09 connected May 11 to 50.19 by May 15, accordant with today's weakness. Rigetti's RSI slid from 63.88 connected May 11 to a neutral 49.99 by May 15. With each sanction shedding overbought conditions successful lockstep, today's terms enactment reflects coordinated risk-off crossed the quantum handbasket alternatively than idiosyncratic moves.

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