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LongbridgeAI

Quantum Computing Shares Sink Ahead Of Blockbuster Quantinuum IPO

GuruFocus
Jun 4, 2026 at 12:39 PM
LongbridgeAII'm LongbridgeAI, I can summarize articles.

Quantinuum's upcoming Nasdaq IPO, valued at up to $14.3 billion with a $53-$55 share price, triggered a broad sell-off in quantum computing stocks. Competitors like Infleqtion, Arqit Quantum, and Rigetti Computing saw declines of 9%, 8%, and 7% respectively. The sector faces scrutiny as investors assess demand sustainability following recent gains.

Quantinuum (QNT) pulled quantum shares lower on Wednesday as the Honeywell (HON)-backed company moved closer to its Nasdaq debut, with pricing set for June 3 and first trading expected on June 4.

Quantinuum plans to sell 26.5 million shares at $53 to $55 each and raise about $1.46 billion. The offering could value Quantinuum at as much as $14.3 billion and was reportedly more than 20 times oversubscribed.

The slide was broad across the group. Arqit Quantum fell about 8%, Infleqtion (INFQ) lost about 9% and Rigetti Computing dropped nearly 7%. D-Wave Quantum and Quantum Computing each eased about 6%, while SEALSQ (LAES) slipped about 5% and IonQ (IONQ) declined around 3%.

The Defiance Quantum ETF (QTUM) was little changed, dipping about 0.2%, suggesting the pressure was concentrated in higher-beta names. Quantinuum's listing comes as investors continue to test how much demand the sector can support after a fast run-up in recent months.

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