Good news for Nvidia could be great news for Quantum Computing stock.

One of the star performers of the quantum computing ETF market, the Ark Autonomous Technology & Robotics ETF has rallied 74% since March 2025. This isn't a flash in the pan; ARKQ has an annual average return of 22% for the past decade.

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While IonQ looks to be one of the stronger players in the quantum industry, the stock won't be a good fit for every investor. With a market capitalization of roughly $15.5 billion, the company is valued at approximately 66 times this year's expected sales -- and its path to regular profitability and earnings growth remains speculative.

Quantum computing stocks are surging in midday trading on Tuesday, with the sector’s three most-watched pure-plays all posting double-digit gains. IonQ (NYSE:IONQ | IONQ Price Prediction) stock is up 18% today,