---
title: "Quantum Stocks Sink Again: IONQ, QBTS, QUBT and RGTI Fall as Treasury Yields Rise"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/296330453.md"
description: "Quantum computing stocks took another hit on Tuesday as rising Treasury yields and a broader selloff in speculative technology shares kept investors on the defensive. IonQ, Inc. (IONQ) fell 5.81%, while D-Wave Quantum Inc. (QBTS) dropped 6.42%, Quantum Computing Inc. (QUBT) lost 5.86%, and Rigetti Computing, Inc. (RGTI) slid 5.14%.Summer Sale - Claim 70% Off TipRanksLearn why XOVR invested in Kalshi and the investment thesis behind one of its newest private holdings."
datetime: "2026-08-19T09:08:43.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/296330453.md)
  - [en](https://longbridge.com/en/news/296330453.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/296330453.md)
generator: "portal-rs"
---

# Quantum Stocks Sink Again: IONQ, QBTS, QUBT and RGTI Fall as Treasury Yields Rise

Quantum computing stocks took another hit on Tuesday as rising Treasury yields and a broader selloff in speculative technology shares kept investors on the defensive. IonQ, Inc. (IONQ) fell 5.81%, while D-Wave Quantum Inc. (QBTS) dropped 6.42%, Quantum Computing Inc. (QUBT) lost 5.86%, and Rigetti Computing, Inc. (RGTI) slid 5.14%.

### Summer Sale - Claim 70% Off TipRanks

Learn why XOVR invested in Kalshi and the investment thesis behind one of its newest private holdings.

### Related Stocks

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

## Related News & Research

- [IonQ partners with CMC Microsystems to provide cloud quantum computing access in Canada](https://longbridge.com/en/news/296265210.md)
- [Rigetti Computing (NASDAQ:RGTI) CFO Jeffrey Bertelsen Sells 3,860 Shares](https://longbridge.com/en/news/296537917.md)
- [Quantum Computing Inc. (QUBT) Revenue Soars in Q2, but Costs Are Rising Fast](https://longbridge.com/en/news/295510962.md)
- [QUBT Earnings Are Due Today. Here's What Investors Need to See](https://longbridge.com/en/news/295389650.md)
- [SkyWater Deal Poses Counterparty Risks That Could Weaken IonQ’s Financial Performance](https://longbridge.com/en/news/295503587.md)

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