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Quantinuum IPO Closes Flat After 19% Pop

By Google News Business · Summarized & edited by · 2026-06-04
Quantinuum IPO Closes Flat After 19% Pop

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Why it matters: The $16 billion debut rewards Honeywell's 2021 bet on combining quantum hardware with Cambridge Quantum's software. The flat close shows investors wouldn't bid the stock above its IPO price, even with 20x oversubscribed demand and a broader sector rally — IonQ up 125%, D-Wave up 90% — plus $2 billion in Trump-administration funding.

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