巴菲特一生赚最多的投资，来自生涯最后十年的“改变”

Group 1 - Warren Buffett acknowledged that Apple is his most profitable investment, expressing gratitude towards CEO Tim Cook for creating significant wealth for Berkshire Hathaway [1] - Buffett's previous skepticism towards technology stocks changed when he invested in Apple in 2016, breaking his long-standing investment rules and achieving substantial returns [2] - Berkshire Hathaway's investment in Apple started with $1 billion, and the company became a major shareholder, increasing its stake over the years [3] Group 2 - Despite the successful investment, Berkshire Hathaway began to gradually reduce its holdings in Apple starting from Q4 2023, decreasing from 905 million shares at the end of 2023 to 300 million shares by the end of 2024, a reduction of nearly two-thirds [3] - Apple remains the largest holding for Berkshire Hathaway, with its market value significantly exceeding that of the next largest holdings, American Express and Bank of America [3]