CBRS Spectrum Drives US Manufacturing Transformation Industry Data Highlights Berkshire Hathaway Revamps Portfolio New Stakes in Delta Airlines and Alphabet Buffetts Tiny Purchase Hinted at in March Berkshire Filing Suggests Small New Position Oil Prices Rise as Trump Signals Tougher Iran Stance European Markets Slide Wall Street Maintains Caution on Snap Inc After Earnings Report Japan Gold Exports Hit Record 25bn May Include Metal Previously Smuggled In Market Rally Drives Portfolio Gains Top and Bottom Performers Highlighted