According to @StockMKTNewz, Warren Buffett has 7.5 trading days left as the CEO of Berkshire Hathaway BRK.B, as posted on Dec 18, 2025, indicating an imminent timeline for a leadership change at BRK.B, source: @StockMKTNewz. The source explicitly references the BRK.B ticker and provides a countdown that situates the potential change within roughly two trading weeks from the post date, source: @StockMKTNewz. The post offers no additional details, official confirmations, or any direct cryptocurrency market implications involving assets like BTC or ETH, source: @StockMKTNewz.