During the post-market session on July 30, the US quantum computing sector demonstrated a broad upward trend. As of press time, mainstream stocks in the sector were all in positive territory. RGTI.US showed the strongest performance, quoting at $13.339 in post-market trading, up approximately 8.99% from the previous close. QBTS.US followed closely at $16.450, gaining 8.96%, while IONQ.US rose 7.85% to $32.290. QUBT.US also advanced, up 6.85% to $7.380.

Looking at the full regular session, the sector had already shown significant strength. In regular market trading, RGTI.US surged as high as $14.555 before closing at $14.460, marking a substantial 9.38% gain on heavy volume of 13.5 million shares, indicating high market attention. QBTS.US closed the regular session at $17.600, up 8.78%, while IONQ.US settled at $34.603, gaining 8.17%. QUBT.US finished the regular session at $7.820, a 7.12% increase. This strong momentum carried over into the post-market session, with continued buying pressure pushing prices higher.

Analysts note that quantum computing concepts have recently attracted sustained capital interest, bolstered by expectations of technological breakthroughs and frequent industry collaboration news, which have boosted investor confidence. Today, all four mainstream stocks in the sector moved in sync during both regular and post-market hours, with gains approaching or exceeding 7%, demonstrating highly consistent bullish sentiment within the sector. Although liquidity typically decreases in post-market trading, the price center continued to shift steadily upward, suggesting that sector enthusiasm is likely to persist into tomorrow's open.