D-Wave Quantum (QBTS -2.13%) stock recorded another day of explosive gains in Thursday's trading. The quantum-computing company's share price climbed 13.7% in the daily session amid the backdrop of a 0.5% gain for the S&P 500 and a 0.7% gain for the Nasdaq Composite. The stock had been up as much as 15.5% earlier in trading.
D-Wave Quantum stock continued to surge higher despite little in the way of business-specific news for the company. News that Denmark has aspirations to host the world's most powerful quantum computer pointed to the potential for a big increase in state-level support for the industry, but it was otherwise a relatively slow news day for quantum stocks. That didn't stop companies in the space from seeing big valuation gains, and expectations that the Federal Reserve will issue multiple interest rate cuts helped support share price expansions.

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Is D-Wave Quantum stock a buy right now?
Charting the progression of the quantum computing space involves an incredibly high degree of guesswork. Even if it's taken as a baseline assumption that the tech category will continue to see major breakthroughs that pave the way for much wider commercial adoption, determining which companies in the space will wind up being winners involves a huge amount of speculation.
D-Wave is staking a specialized, forefront position in the category and could go on to see massive valuation gains if its quantum-computing machines deliver on their promise and prove to have substantial real-world applications. The company launched its Advantage2 system in May, and its next quarterly report should provide some insight into what demand looks like for the machines. While D-Wave stock looks risky on the heels of its recent valuation run up, it could be a worthwhile portfolio addition for investors who are making exposure to the quantum computing space a key strategic priority.