Regeneron REGN and Parabilis Medicines Forge 232 Billion Deal to Tackle Undruggable Protein Targets Richard Childress Racing Retires No 8 as Charlotte Motor Speedway Becomes a Memorial for Kyle Busch Sebi Proposes Standardised Options Strike Price Norms to Address Intraday Volatility Navigating Market Downturns Defensive Stock Strategies OpenAI Reportedly Prepares for Confidential IPO Filing Signaling Leadership in AI Race ParkerHannifin to Acquire Circor Aerospace from KKR Reports Reuters ECB Signals Potential June Rate Hike as Chief Economist Hints at Forecast Upgrade