---
title: "Quantum Computing Stocks Fall in Overnight Session, IONQ Down Nearly 6%, QBTS Nearly 10%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/294136152.md"
description: "During Tuesday (July 28) overnight trading, the quantum computing sector retreated broadly. As of press time, IONQ fell nearly 6% and QBTS nearly 10%, with RGTI and QUBT also declining, reflecting cautious market sentiment."
datetime: "2026-07-29T01:46:05.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/294136152.md)
  - [en](https://longbridge.com/en/news/294136152.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/294136152.md)
generator: "portal-rs"
---

# Quantum Computing Stocks Fall in Overnight Session, IONQ Down Nearly 6%, QBTS Nearly 10%

During the overnight session on Tuesday (July 28), the quantum computing sector faced broad selling pressure, with major stocks closing lower. As of the overnight trading session in Eastern Time, stocks in the sector showed a widespread decline, led by **IONQ** and **QBTS**, which fell nearly 6% and nearly 10% respectively.

Specifically, **IONQ** was last traded at $33.90 in the overnight session, slightly above its previous close of $33.88. However, looking at its regular market performance, the stock showed weakness throughout the day, closing at $33.88, down 5.68% from the previous close of $35.92. It dipped to a low of $32.12 during the session, indicating significant selling pressure. **QBTS** performed even weaker, trading at $17.54 in the overnight session. It closed the regular market at $17.64, a sharp 9.58% decline from the previous close of $19.51, hitting a low of $17.26 with significantly increased volume, signaling notable capital outflow.

Other stocks in the sector also struggled to escape the downturn. **RGTI** was last traded at $14.45 in the overnight session, having closed down 7.16% at $14.52 in the regular market. **QUBT** was last traded at $7.70, having closed down 3.02% at $7.72 in the regular market. Overall, the quantum computing sector continued its intraday adjustment trend during the overnight session, with investor sentiment turning cautious. The market will likely watch for signs of stabilization at key support levels in the near term.

### Related Stocks

- [IONQ.US](https://longbridge.com/en/quote/IONQ.US.md)
- [QUBT.US](https://longbridge.com/en/quote/QUBT.US.md)
- [QBTS.US](https://longbridge.com/en/quote/QBTS.US.md)
- [RGTI.US](https://longbridge.com/en/quote/RGTI.US.md)
- [IONL.US](https://longbridge.com/en/quote/IONL.US.md)
- [QBTX.US](https://longbridge.com/en/quote/QBTX.US.md)
- [QTUM.US](https://longbridge.com/en/quote/QTUM.US.md)
- [IONX.US](https://longbridge.com/en/quote/IONX.US.md)
- [RGTZ.US](https://longbridge.com/en/quote/RGTZ.US.md)
- [QBTZ.US](https://longbridge.com/en/quote/QBTZ.US.md)
- [QUBX.US](https://longbridge.com/en/quote/QUBX.US.md)
- [RGTX.US](https://longbridge.com/en/quote/RGTX.US.md)
- [RGTU.US](https://longbridge.com/en/quote/RGTU.US.md)
- [IONZ.US](https://longbridge.com/en/quote/IONZ.US.md)
- [QPUX.US](https://longbridge.com/en/quote/QPUX.US.md)
- [IOYY.US](https://longbridge.com/en/quote/IOYY.US.md)
- [IONQ+.US](https://longbridge.com/en/quote/IONQ+.US.md)
- [QBTS+.US](https://longbridge.com/en/quote/QBTS+.US.md)
- [RGTIW.US](https://longbridge.com/en/quote/RGTIW.US.md)

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- [Rigetti Computing (NASDAQ:RGTI) CFO Jeffrey Bertelsen Sells 3,860 Shares](https://longbridge.com/en/news/296537917.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)
- [D-Wave partners with Nasdaq Verafin to develop quantum-hybrid tools for financial crime detection](https://longbridge.com/en/news/294682342.md)
- [The Market Is Starting To Shift](https://longbridge.com/en/news/291464724.md)

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