Alphabet (NASDAQ: GOOGL) just made history. The tech giant surpassed a $4 trillion market capitalization for the first time after shares closed above $335 on Tuesday, Jan. 13, cementing its position as the second-most valuable company in the world behind NVIDIA. For long-term investors, the milestone is both symbolic and earned, especially after enduring a choppy and frustrating first half of 2025 when Alphabet lagged peers amid mounting AI competition, advertising concerns, and regulatory overhangs.
Ironically, many of the same fears that drove that underperformance are now fueling the stock’s resurgence. As MarketBeat highlighted throughout last year, Alphabet’s ability to defend its core businesses while accelerating AI monetization has been underestimated. In the short term, however, which specific announcements catalyzed the move toward a $4 trillion market capitalization? Let’s take a look.
