During intraday trading on July 30, the quantum computing sector surged broadly, with all four mainstream stocks posting double-digit or near double-digit gains, signaling a significant boost in market sentiment. As of press time, IONQ (IonQ Inc.) led the charge, trading at $36.11, up 12.88% from the previous close of $31.99. The stock hit an intraday high of $36.13, with volume reaching 15.51 million shares, indicating strong capital inflow.

Close behind was QBTS (D-Wave Quantum Inc.), which traded at $18.12, up 11.99% from its prior close of $16.18. The stock reached an intraday high of $18.13, with turnover totaling approximately $282 million and active turnover rates. RGTI (Rigetti Computing Inc.) also performed robustly, currently at $14.95, marking a gain of 13.09%. It touched an intraday high of $15.00, with volume hitting 18.87 million shares, a recent high. Additionally, QUBT (Quantum Computing Inc.) joined the rally, trading at $8.02, up 9.86%, with an intraday high of $8.025 and turnover of about $43.85 million.

Overall, the quantum computing sector displayed a broad-based rally during today's session, with all four component stocks gaining close to or exceeding 10%, highlighting the sector's high investor interest and capital preference in the current market environment. Investors should remain mindful of potential volatility following such significant short-term gains while monitoring technological progress and commercialization milestones of the related companies.