Google-parent Alphabet joins $4 trillion club with Nvidia, Apple and Microsoft: 4 key things that helped company reach this milestone

Google-parent company Alphabet briefly crossed the historic $4 trillion market valuation on Monday (January 12), joining an elite club of tech titans that includes Nvidia, Apple and Microsoft. The company reaped the benefits of its aggressive push of artificial intelligence (AI), essentially pushing the company at the forefront of the global AI-led tech race.According to a report by news agency Reuters, Class-A shares rose as much as 1.7% to hit a record high of $334.04. Throughout 2025, Alphabet’s shares surged nearly 65%. Here are the four key factors that powered Alphabet’s ascent to the $4 trillion mark:Investor confidence boosted in September last year after a US judge ruled against breaking up the company. The decision, which allowed Alphabet to retain control of its Chrome browser and Android operating system, boosted the investors confidence.The most significant driver of recent growth is the adoption of Google’s AI models. In November, Google launched Gemini 3.0 which gained strong reviews. A month later, the company announced Gemini 3 Flash, its fastest model yet. Google also reaped benefits of its strong cloud computing business which became one of the success drivers of company. In the third quarter alone, cloud revenue jumped 34%.Google is reported to have reached multi-year deals with tech industry bigwigs like Samsung and Apple. Reports claim that Samsung is planning to double the number of mobile devices powered by Gemini features this year. In the latest development, Apple will utilise Gemini to power the next generation of Apple’s Siri. Last year, Meta was also reported to have struck a multi-billion deal with Gemini to train its next generation Llama models, purportedly wiping $250 billion from Nvidia’s market cap.Google’s rally gained further push from one of the world's most watchful investors: Warren Buffett. Berkshire Hathaway made a significant investment in Alphabet, signaling confidence in the company’s long-term strategy.