The surge reflects a dramatic turnaround in investor sentiment. Alphabet’s stock jumped roughly 65% in 2025, outpacing peers in the elite “Magnificent Seven” group of tech stocks. So far in 2026, the shares have added another 6%, with a latest gain of 1.1%.
Analysts say the rally is fueled by Alphabet’s success in transforming its cloud division into a major growth engine, along with the company’s early AI initiatives, which had previously raised concerns about lost market advantage. The launch of its new Gemini 3 AI model has garnered strong reviews, intensifying competition with OpenAI, whose GPT-5 has left some users underwhelmed.
Alphabet’s cloud business continues to drive growth, with third-quarter revenue up 34% and a backlog of unrecognized sales contracts reaching $155 billion. In a strategic move, the company has begun renting its self-developed AI chips—once reserved for internal use—to external clients, further boosting its revenue. Industry reports indicate that Meta Platforms is in talks to spend billions on these chips for its data centers starting in 2027, while Samsung plans to double the number of mobile devices this year powered by Google’s Gemini AI.
Meanwhile, Alphabet’s core advertising business has remained largely resilient amid economic uncertainty and mounting competition. The company has also benefited from a favorable legal outcome in September, when a U.S. judge ruled against breaking up Alphabet, allowing it to maintain control over its Chrome browser and Android mobile operating system.
Alphabet is now the fourth company to reach the $4 trillion valuation milestone, joining Nvidia, Microsoft, and Apple, signaling the enduring strength of large-cap tech firms in the AI era.