Alphabet briefly crossed a $4 trillion market valuation on Monday, buoyed by renewed investor confidence in the company’s artificial intelligence strategy, according to Reuters. Shares of the Google parent rose as much as 1.7% to a record high before paring gains, as markets reacted to signs that Alphabet’s AI investments are translating into commercial momentum.
Reuters reported that Alphabet disclosed a multi-year agreement under which the next generation of Apple’s AI models will be built on Google’s Gemini platform, a development that helped push sentiment higher. The news followed earlier reporting that Samsung plans to double the number of AI-enabled mobile devices powered by Gemini this year, further expanding the platform’s reach.
The milestone marks a sharp turnaround for Alphabet, whose stock gained roughly 65% in 2025, outperforming peers in the “Magnificent Seven.” Reuters noted that investor concerns over Alphabet’s AI execution have eased as Google Cloud emerged as a major growth engine, with revenue rising 34% in the third quarter and backlog climbing to $155 billion.
