Core Insights - Berkshire Hathaway has taken a $4.3 billion position in Alphabet, surprising many observers as Warren Buffett has not traditionally been a tech investor [1][2] - Alphabet is now among Berkshire's top 10 holdings, indicating Buffett's approval of the investment [2] - The future of Alphabet as a "forever stock" remains uncertain, as Buffett defines such stocks as those that are successful in their core businesses and have become essential global brands [3] Group 1: Forever Stocks in Berkshire's Portfolio - Coca-Cola is the first "forever stock," with Berkshire owning about 9% of its outstanding shares; the company has a strong economic moat and generates predictable cash flows [5][6] - American Express is the second stock, with Berkshire owning over 20% of its shares; it has a closed-loop network that allows it to capture full economic profit from credit card payments [7][8] - Occidental Petroleum is the third stock, with Berkshire owning more than 26% of its shares; despite concerns about its economic moat, the company is improving its balance sheet [9][10]