Alphabet has surged past the $3 trillion mark in market capitalization, cementing its position among a handful of mega-cap tech giants. The rally was fuelled by a favourable US court ruling that ended a five-year antitrust battle and spared Google from a forced sale of its Chrome browser or Android operating system. While the judge ordered Alphabet to share data with rivals, investors cheered the decision, sending shares up more than 4% on Monday in Europe and more than 30% since the start of the year.The milestone puts Alphabet in rare company. Nvidia remains the most valuable tech firm globally with a market cap above $4.2 trillion, followed by Microsoft at roughly $3.8 trillion, and Apple at $3.5 trillion. Google’s dominance in search, which accounts for over half of its revenue, remains intact for now, while new growth drivers in artificial intelligence continue to strengthen the outlook.Second-quarter results underlined that momentum, with revenues climbing 15% year-on-year, comfortably ahead of Wall Street estimates. Demand for AI products, including tools embedded in Google Cloud and Workspace, is lifting sales and reassuring investors that Alphabet can defend its leadership even in a more competitive digital economy.What Does This Mean for Me?Crossing the $3 trillion threshold highlights both the strength of Alphabet’s core businesses and the market’s conviction in its AI strategy. With regulatory challenges easing and revenue growth accelerating, Alphabet is set to remain one of the dominant names in global equities.