Based on the provided data and recent market developments, here's a concise 5-sentence analysis of BRK.B's valuation:
BRK.B appears to be trading at elevated levels with a forward P/E ratio of 25x 2025 analyst estimates and a price-to-book ratio of 1.7x, which are historically high multiples for the company. Warren Buffett's recent actions strongly suggest he views both the broader market and Berkshire's stock as overvalued, evidenced by his decision to halt share buybacks for the first time since 2018 and accumulate a record $334 billion cash position while being a net seller of stocks in 2024. The company's core operations remain strong with operating income rising 27% to $47.4 billion in 2024, but Buffett's aggressive selling of stocks (over $143 billion sold versus only $9 billion purchased in 2024) indicates concerns about current valuations. Notably, Buffett has reduced exposure to certain sectors like banking, selling down positions in Bank of America and Citigroup, while only making selective additions in defensive industries like spirits maker Constellation Brands. Given Buffett's own actions and the historically high valuation metrics, BRK.B appears overvalued at current levels, particularly since Buffett himself is choosing to hold cash rather than buy back his own company's shares.