Why did the S&P 500 erase all 2025 losses? How will GOP tax bill affect Tesla and Musk? What caused UnitedHealth CEO to resign unexpectedly? How will NJ Transit strike impact commuters and businesses? Why did Coinbase shares soar after S&P inclusion? What are the implications of Nvidia’s Saudi AI deal? How are tariffs impacting Japanese automakers like Nissan and Honda? Why did Microsoft announce significant global workforce layoffs? How will Trump’s executive order affect U.S. drug prices?