---
title: "Quantum Computing Stocks Fall in Overnight Session; IONQ Down Nearly 2%, QBTS Down Nearly 3%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/293530603.md"
description: "The quantum computing sector weakened collectively during the overnight session, with all four major stocks closing lower. IONQ fell nearly 2%, QBTS dropped nearly 3%, while RGTI and QUBT both declined over 2%. Sector sentiment remained subdued with notable capital outflows."
datetime: "2026-07-22T22:46:51.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/293530603.md)
  - [en](https://longbridge.com/en/news/293530603.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/293530603.md)
generator: "portal-rs"
---

# Quantum Computing Stocks Fall in Overnight Session; IONQ Down Nearly 2%, QBTS Down Nearly 3%

The quantum computing sector showed weakness during the overnight session, with all four major stocks closing lower. As of press time, IONQ.US traded at $34.84 in the overnight session, up 0.46% from its regular session close of $34.68, but reflecting a pullback from the previous close of $35.51. QBTS.US fell 2.53% to $17.36, RGTI.US declined 0.46% to $15.16, and QUBT.US dropped 3.65% to $7.92.

Trading activity across the sector moderated compared to regular hours. IONQ saw overnight turnover of approximately $20 million, QBTS recorded $7.48 million, RGTI posted $7.73 million, and QUBT logged $0.73 million. Despite relatively limited overnight liquidity, all four stocks faced varying degrees of selling pressure, indicating investor caution regarding the near-term outlook for quantum computing concepts.

Looking back at the regular trading session, the quantum computing sector already displayed weakness. IONQ closed down 2.34%, QBTS fell 2.53%, RGTI declined 0.33%, and QUBT dropped 3.77% during regular hours. The overnight session extended the daytime weakness, with most stocks probing lower. Currently lacking substantial positive catalysts and showing technical adjustment signals, the sector may maintain a consolidating trend in the near term.

### Related Stocks

- [IONQ.US](https://longbridge.com/en/quote/IONQ.US.md)
- [QBTS.US](https://longbridge.com/en/quote/QBTS.US.md)
- [RGTI.US](https://longbridge.com/en/quote/RGTI.US.md)
- [QUBT.US](https://longbridge.com/en/quote/QUBT.US.md)

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- [Rigetti CFO Jeffrey Bertelsen sells 25,000 shares for $375,010](https://longbridge.com/en/news/298071727.md)
- [D-Wave Quantum Just Got a 240x Boost From AT&T. How to Play QBTS From Here.](https://longbridge.com/en/news/295119837.md)
- [Quantum Computing Sector Rallies Intraday, IONQ Up Nearly 7%, QBTS Surges Over 7%](https://longbridge.com/en/news/294376900.md)
- [QUBT Earnings Are Due Today. Here's What Investors Need to See](https://longbridge.com/en/news/295389650.md)
- [Quantum Computing Inc. (QUBT) Revenue Soars in Q2, but Costs Are Rising Fast](https://longbridge.com/en/news/295510962.md)

---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**