S&P 500 Gains and Losses Today: NRG Energy Stock Surges After Analyst Upgrade

Key TakeawaysThe S&P 500 added 0.6% on Tuesday, Nov. 26, as investors weighed the implications of President-elect Donald Trump's promise to impose new tariffs on Mexico, Canada, and China.General Motors shares sank on the tariff news, as the automaker has a significant manufacturing footprint in Canada and Mexico.Shares of electricity generator NRG Energy soared as Jefferies analysts upgraded the stock, highlighting cross-selling opportunities. Major U.S. equities indexes ticked higher as investors weighed ...