Wall Street dumps AI for Buffett’s Berkshire

For three weeks, Wall Street sold one of the market’s hottest trades and bought one of its oldest. Chip stocks fell about 15 per cent. Warren Buffett’s Berkshire Hathaway rose about 7 per cent.Between October 2 and October 20, the iShares Semiconductor ETF (SOXX) lost 15.1 per cent, while Berkshire’