---
title: "Quantum Computing Stocks Mixed in Post-Market, IONQ -0.47%, QBTS +0.77%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/299950115.md"
description: "Quantum computing stocks showed mixed performance in post-market session. IONQ fell 0.47% to $42.34, QBTS rose 0.77% to $16.94, RGTI edged up 0.09%, and QUBT declined 0.22%."
datetime: "2026-09-23T22:45:49.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/299950115.md)
  - [en](https://longbridge.com/en/news/299950115.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/299950115.md)
generator: "portal-rs"
---

# Quantum Computing Stocks Mixed in Post-Market, IONQ -0.47%, QBTS +0.77%

During the post-market session on September 23, quantum computing stocks displayed divergent performance. As of press time, **IONQ** traded down 0.47% at $42.34 in post-market, while **QBTS** gained 0.77% to $16.94. The sector showed mixed movements with limited overall volatility.

Looking at regular session performance, quantum computing concepts saw active trading throughout the day. IONQ closed regular trading at $42.54, up 4.42% from the previous session, with an intraday high of $46.05. QBTS settled at $16.81 during regular hours, down 4.26%. Post-market trading volume contracted significantly compared to regular session, reflecting cautious investor sentiment.

RGTI edged up 0.09% to $16.02 in post-market, while QUBT declined 0.22% to $9.10. As a frontier technology sector, quantum computing has attracted sustained market attention recently, though individual stock performance varies considerably. Investors should closely monitor each company's technological progress and commercialization timelines.

## Sector constituents

| Name | Ticker  | Last  | Change |
| ---- | ------- | ----- | ------ |
| QBTS | QBTS.US | 16.94 | +0.77% |
| RGTI | RGTI.US | 16.02 | +0.09% |
| QUBT | QUBT.US | 9.10  | -0.22% |
| IONQ | IONQ.US | 42.34 | -0.47% |

### 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

- [IonQ Stock Wins Analyst Backing Ahead of 2027 Superion Launch](https://longbridge.com/en/news/300335478.md)
- [This Lexicon Pharmaceuticals Analyst Begins Coverage On A Bullish Note; Here Are Top 5 Initiations For Monday](https://longbridge.com/en/news/300306438.md)
- [IonQ partners with Nvidia to deploy Superion 256 quantum system at accelerated quantum research center](https://longbridge.com/en/news/299893242.md)
- [D-Wave Quantum Adds Veteran Tech Leader to Board](https://longbridge.com/en/news/299637348.md)
- [Quantum Stocks Rally as RGTI, QBTS Secure Up to $200M in U.S. Funding](https://longbridge.com/en/news/298320736.md)

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