Quantum Computing Stocks: IonQ, Rigetti Computing, and D-Wave Quantum

Investing in quantum computing stocks can be a thrilling but challenging endeavor. With the market rapidly heating up, it’s essential to separate the contenders from the pretenders. Three publicly traded companies – IonQ (IONQ), Rigetti Computing (RGTI), and D-Wave Quantum (QBTS) – have made significant strides in this space. However, not all will emerge victorious.

To stand out, each company has unique approaches:

* IonQ focuses on trapped-ion technology with low error rates, currently offering 99.99% fidelity on two-qubit gates.
* Rigetti Computing is a full-stack superconducting quantum shop with a growing portfolio, including a 36-qubit “Cepheus-1” system and a 336-qubit system slated for 2026.
* D-Wave Quantum specializes in quantum annealing for optimization problems.

While each company has its strengths, the competition is fierce. The most promising approach may depend on your investment goals and risk tolerance.

Key Takeaways:

* IonQ’s trapped-ion technology offers low error rates but may struggle with speed and scalability.
* Rigetti Computing’s superconducting platform is gaining traction but faces challenges in terms of volume-manufacturability.
* D-Wave Quantum’s quantum annealing approach has garnered significant attention, but its niche focus raises questions about long-term viability.

Investing in quantum computing stocks requires careful consideration. It’s crucial to research each company individually and determine which one will ultimately prevail.

Source: https://247wallst.com/investing/2025/11/03/ionq-vs-rgti-vs-qbts-which-quantum-computing-stock-should-you-buy-in-november-2025