Billionaire Bill Ackman Boosts Amazon and Microsoft Holdings Cuts Alphabet Stake by 95 in First Quarter David Einhorns Hedge Fund Greenlight Capital Takes Bullish Stance on Major Mall Retail Stock Tesla Launches Full SelfDriving Supervised in China Amid Intensifying Local Competition Fed Rate Hike Expectations Return as Inflation Surprises Market Participants Refex Industries Q4 Net Profit Doubles to 94 Crore FY26 PAT Reaches 204 Crore Navigating Market Downturns Defensive Stock Strategies Huawei Unveils New Chip Design Approach Plans Fall Smartphone Chips Amid US Restrictions and Rivalry with Nvidia Apple