TrumpIran Talks Enter Critical Phase as Geopolitical Risk Looms Over Energy Markets US Productivity Growth Slows in Q4 Unit Labor Costs Accelerate Herbalife Reports First Quarter Results That Exceed Market Expectations Taiwan Chip Stocks Rally Following Nvidias 150 Billion Spending Announcement Mainland Chinese Chip Firms Slide Wall Street Braces for Key Inflation Data Tech Earnings and Geopolitical Developments in Week Ahead Equinor EQNR Receives Analyst Upgrade Amid Tightening European Gas Market HS2 Cost Estimates Surge to 1027bn Service Start Delayed Until 2039 Transport Secretary Says