Alphabet Stock Has Surged Since Warren Buffett's Berkshire Hathaway Bought a Stake in the Tech Giant. Is It Too Late to Buy?

Group 1 - Alphabet's shares have experienced significant growth in 2025, particularly after Berkshire Hathaway disclosed a multibillion-dollar stake, leading to a sharp increase in stock price [1][4] - The company is recognized for its search and advertising business, YouTube, and a rapidly expanding cloud computing platform, alongside aggressive investments in AI, which are reshaping its financial profile [2][3] - Berkshire Hathaway's investment in Alphabet, valued at approximately $5 billion, indicates confidence in the company's business model during a period of heavy capital expenditure [4][8] Group 2 - Alphabet's third-quarter revenue rose 16% year-over-year to $102.3 billion, with Google Services revenue increasing by 14% and Google Cloud revenue surging by 34% [6] - The company's net income for the third quarter climbed 33% to around $35 billion, and earnings per share increased by 35% to $2.87, driven by strong operating leverage and gains in its investment portfolio [7][5] - The recent performance data provides investors with more information to justify the higher stock price, despite the increase since Berkshire's initial purchase [5][6]