Quantum computing pure-plays like IonQ, Rigetti Computing, and D-Wave Quantum are popular AI stocks with high valuations due to momentum. Institutional investors are favoring one member of the “Magnificent Seven” group. The stock market saw double-digit gains in 2025, with AI playing a key role in driving growth.

Investing in mainstream quantum computing stocks may be risky due to high valuations. Valuation multiples, like the price-to-sales ratio, have expanded significantly for quantum AI favorites. Companies like Microsoft, Amazon, and Cisco saw similar valuations during the dot-com boom, leading to market value losses after the bubble burst.

Billionaires are increasingly investing in Alphabet, with notable figures like Warren Buffett buying Alphabet stock. Alphabet has its own quantum computing roadmap and a strong AI ecosystem spanning various industries. The company’s vertically integrated business model positions it well for growth in the AI revolution.

Alphabet stands out as a top choice in the AI and quantum-specific landscape, with high profitability compared to other hyperscaler AI developers. The company’s financial flexibility and diverse market presence make it an attractive investment option for long-term growth. Institutional capital recognizes Alphabet as a durable and resilient business poised for continued revenue acceleration.

Before buying stock in Alphabet, investors should consider other top stock picks identified by the Motley Fool Stock Advisor team. While Alphabet is not on the list, the recommended stocks have the potential for significant returns. Stock Advisor has a history of outperforming the S&P 500, providing investors with valuable insights and investment opportunities.

Read more at Nasdaq: Meet the Quantum Computing Stock That Billionaires Can’t Get Enough Of (Hint: It’s Not IonQ, Rigetti Computing, or D-Wave Quantum)