Stock futures lower as Fed decision looms, earnings in focus; Samsung confirms weakest quarterly profit in eight years, maintains capex plans; UnitedHealth, Humana slide as Medicare plans overpayment clawback; Exxon
Stock futures lower as Fed decision looms, earnings in focus; Samsung confirms weakest quarterly profit in eight years, maintains capex plans; UnitedHealth, Humana slide as Medicare plans overpayment clawback; Exxon earnings on deck after Chevron miss and AMD earnings in focus as chip sector feels global demand slump.