SP 500 Edges Higher as Healthcare Tech Lead Communication Services Drag ONGC Reports 46 Surge in Q4 Net Profit Revenue Up 4 Sebi Proposes Intraday Option Strike Additions to Aid Volatility Navigation Warren Buffetts Tiny Purchase in March Possibly Revealed in Berkshire Filing Huawei Plans New Smartphone Chips This Fall Amid Escalating Rivalry with Nvidia and Apple Micron UnitedHealth Rocket Lab Highlight Divergent Market Trends Barrons Reports Bessent Forecasts Substantial Disinflation as Warsh Poised to Lead Federal Reserve