---
title: "Quantum Computing Sector Rallies During Regular Session, IONQ Up Nearly 5%, QUBT Gains Over 3%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/299906316.md"
description: "The quantum computing sector advanced during the regular session on September 23. IONQ led gains up nearly 5%, QUBT rose over 3%, while QBTS and RGTI posted modest advances. Trading activity remained robust across the sector."
datetime: "2026-09-23T13:47:42.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/299906316.md)
  - [en](https://longbridge.com/en/news/299906316.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/299906316.md)
generator: "portal-rs"
---

# Quantum Computing Sector Rallies During Regular Session, IONQ Up Nearly 5%, QUBT Gains Over 3%

During the regular session on September 23, the U.S. quantum computing sector showed strong performance with all component stocks trading higher. As of press time, sector leader IonQ (IONQ.US) last traded at **$42.59**, up **4.53%**, after reaching an intraday high of $46.02. Quantum Computing Inc (QUBT.US) followed closely, trading at **$9.37**, gaining **3.14%**.

Among other components, D-Wave Quantum (QBTS.US) traded at **$17.71**, up **0.85%**, while Rigetti Computing (RGTI.US) stood at **$16.63**, advancing **0.67%**. In terms of turnover, IONQ recorded approximately **$990 million** in regular session volume, QBTS logged about **$132 million**, RGTI posted roughly **$137 million**, and QUBT saw around **$47 million**, indicating sustained investor interest across the sector.

The quantum computing space has continued to attract market attention, with technological breakthroughs and improving commercial prospects driving capital allocation toward quantum technology concepts. The broad-based advance during the session reflects investor confidence in the sector's long-term growth potential.

## Sector constituents

| Name                  | Ticker  | Last  | Change |
| --------------------- | ------- | ----- | ------ |
| IonQ                  | IONQ.US | 42.59 | +4.53% |
| Quantum Computing Inc | QUBT.US | 9.37  | +3.14% |
| D-Wave Quantum        | QBTS.US | 17.71 | +0.85% |
| Rigetti Computing     | RGTI.US | 16.63 | +0.67% |

### 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)

## Related News & Research

- [Quantum computing Q2 2026 earnings preview](https://longbridge.com/en/news/295333654.md)
- [Quantum Computing Inc signs three-year quantum collaboration deal with Qatar’s HBKU](https://longbridge.com/en/news/298918918.md)
- [Quantum Computing Q2 revenue beats, helped by photonics products sales](https://longbridge.com/en/news/295445064.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.**