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

"IonQ shares are down roughly 7%, D-Wave Quantum stock is off 8%, and shares of Rigetti Computing and Quantum Computing are dropping 10%. No single company-specific catalyst is driving the move. All four names reported earnings over the past two weeks with strong revenue growth and bullish commentary, fueling a sector rally that now appears to be unwinding. Even IonQ, which entered today up 20.1% over the past month and up 15.8% year to date, is selling off alongside weaker peers like D-Wave and Rigetti."

"Technical readings support the profit-taking thesis. IonQ's 14-day RSI peaked at 77.95 on April 20 and spent seven consecutive sessions in overbought territory before fading to 58.58 by May 15. Quantum Computing's RSI hit 71.09 on May 12 before dropping to 56.61 three sessions later, a rapid momentum reversal. D-Wave's RSI collapsed from 66.09 on May 11 to 50.19 by May 15, consistent with today's weakness. Rigetti's RSI slid from 63.88 on May 11 to a neutral 49.99 by May 15."

"IonQ's Moving Average Convergence Divergence (MACD) histogram peaked at 0.83 on May 12 before contracting to 0.41 by May 15. That's a classic sign that bullish momentum is fading even as the MACD line remains above its signal. With each name shedding overbought conditions in lockstep, today's price action reflects coordinated risk-off across the quantum basket rather than idiosyncratic moves."

"IonQ reported Q1 2026 revenue of $64.67 million, up 755% year over year and raised full-year guidance to $260 million to $270 million. CEO Niccolo de Masi called it the "fourth consecutive quarter of record-breaking results." The one-year picture remains constructive. IonQ shares were up 59.7% over the past year, D-Wave Quantum up 84.5%, Rigetti up 54.7%, and Quantum Computing up 13.7%."

IonQ, D-Wave Quantum, Rigetti Computing, and Quantum Computing declined together by roughly 7% to 10% despite strong recent earnings and bullish commentary. No single company-specific catalyst drove the move. The longer-term trend remains positive, with one-year gains still substantial for each company, though today’s pullback trims those returns. Technical indicators support profit-taking: IonQ’s RSI peaked near 78 and fell to the high-50s, while Quantum Computing’s RSI dropped from above 71 to the mid-50s. D-Wave and Rigetti also moved from elevated RSI levels toward neutral. MACD momentum weakened as the histogram contracted. IonQ reported Q1 2026 revenue of $64.67 million, up 755% year over year, and raised full-year guidance to $260 million to $270 million.

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