Stock market today: S&P 500, Nasdaq futures rise as Dow lags with Fed meeting, GM earnings on deck

Market Overview - US stock futures increased, with S&P 500 rising 0.3% and Nasdaq 100 advancing 0.6%, while Dow Jones Industrial Average futures remained stable [1] - Investors are focused on the Federal Reserve's upcoming interest rate decision, with expectations of holding the benchmark rate steady [4] Earnings Reports - Key earnings reports due include General Motors, American Airlines, and Boeing [2] - Over 90 S&P 500 companies are set to report earnings, including major players like Meta, Microsoft, Tesla, and Apple [3] Health Insurance Sector - Health insurer stocks experienced significant declines after a report indicated Medicare payments would increase by only 0.09% for 2027, falling short of Wall Street expectations [7] - Humana's stock dropped 12.5%, CVS Health fell over 10% before settling at a 9.4% loss, and UnitedHealth Group's shares decreased by 8.6% [8] Political and Economic Risks - President Trump announced an increase in tariffs on South Korean products from 15% to 25%, affecting various sectors including autos and pharmaceuticals [5] - A potential government shutdown looms as Senate Democrats oppose a funding bill for the Department of Homeland Security [6]