Alphabet, the parent company of Google, achieved a major financial milestone on Monday by reaching a market valuation of $4 trillion. In doing so, it overtook Apple to become the second-most valuable company in the world. This achievement places Alphabet in an elite group of tech giants, including Nvidia and Microsoft, that have crossed this valuation threshold. The surge in value is largely attributed to a groundbreaking deal with Apple, which will see Google’s Gemini AI powering a revamped Siri. This partnership underscores the critical role of artificial intelligence in shaping the future of the technology sector.
The choice of Gemini by Apple is a significant endorsement of Google’s AI capabilities. Apple stated that after a comprehensive review of available technologies, Google’s platform stood out as the most capable foundation for their needs. This collaboration brings together two of the biggest names in tech and ensures that Google’s AI will be at the heart of the iPhone user experience. While the financial details remain confidential, the strategic value of this deal is evident in the market’s bullish response.
Alphabet’s stock has experienced a meteoric rise, jumping 65% in 2025. This performance has outpaced other major tech stocks, including the rest of the “Magnificent Seven.” The company’s success comes as rivals like OpenAI have stumbled; the underwhelming release of GPT-5 gave Google an opening to assert its dominance. Through successful product launches like the Nano Banana image generator and regular updates to Gemini, Google has demonstrated its ability to innovate and execute, calming fears of a tech bubble and driving sustained investor interest.
In addition to its AI triumphs, Google continues to expand its cloud computing business. The division has become a key revenue driver, with a 34% increase in the third quarter and a $155 billion backlog of contracts. This strong performance even attracted an investment from Berkshire Hathaway. A major factor in this growth is the availability of Google’s proprietary AI chips for external use. By allowing other companies to rent this powerful hardware, Google has opened up a new high-growth revenue stream that complements its traditional businesses.
Despite these successes, Google is navigating a challenging legal environment. The company is the subject of two high-profile antitrust lawsuits in the United States. Although a judge recently ruled against a breakup in one case, preserving the company’s structure, a second trial regarding the online ad market is ongoing. This trial could result in significant remedies, including the divestiture of parts of the ad business. Nevertheless, Google’s advertising revenue remains resilient, providing a steady flow of cash as the company continues to grow and evolve.