Group 1: Berkshire Hathaway's Performance and Strategy - In 2024, Berkshire Hathaway's stock performed well, with class B shares generating a 27% return, outperforming the broader market's 23% return [1] - Despite strong stock performance, Berkshire hoarded cash, was a net seller of stocks, and sold significant portions of its holdings in Apple and Bank of America, indicating a belief that the market is overvalued [2][5] - The combined positions in Apple and Bank of America accounted for 39% of Berkshire's portfolio at the end of 2024, raising questions about the company's future plans for these investments [5] Group 2: Investment in Apple - Berkshire first invested in Apple in 2016, building its position to around 40% of its $296 billion portfolio, with significant purchases made when Apple shares were below $50, now trading at $240 [3] - The decision to sell parts of the Apple position may reflect concerns about a potential market correction or economic downturn [6] Group 3: Investment in Bank of America - Berkshire invested $5 billion in Bank of America in 2011, acquiring preferred stock with a 6% annual dividend and warrants for 700 million shares at a strike price of $7.14, with the stock currently trading at about $44 [4] - Similar to Apple, the selling of Bank of America shares may indicate a strategy to realize profits amid market uncertainties [6] Group 4: American Express Investment - Berkshire has a long-standing relationship with American Express, first investing in 1991 and holding approximately 151.6 million shares by the end of 2024, which has not been sold in nearly 27 years [7][8][12] - American Express represents about 15% of Berkshire's portfolio and is unique due to its strong brand and credit card network, which provides a competitive moat [9][10][11]