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Stock Market Today, May 28: Rigetti Computing Extends Gains on Quantum Optimism

fool.com·May 28, 2026

Rigetti Computing's stock surged by 9.63% to $27.03 following the announcement of over $2 billion in U.S. government grants for quantum firms, reflecting strong interest in the quantum computing sector. The S&P 500 and Nasdaq also saw gains, indicating a positive market trend amid growing optimism for quantum technology investments.

Quantum computing stocks, particularly Rigetti Computing, are seeing significant gains due to the recent U.S. government funding program for domestic quantum firms, which includes a $2 billion allocation to spur innovation. Although Rigetti's stock price has surged, it's important to consider the speculative nature of such investments, but the sector's potential economic value is projected to reach $450 billion by 2040, suggesting long-term opportunities for well-positioned companies like Rigetti.

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