GameStop and AMC Lead Market Movers Today

Major U.S. indices showed mixed results on Tuesday, with the Dow Jones down 0.3%, the S&P 500 up 0.1%, and the Nasdaq up nearly 0.6%. GameStop shares surged 21% after Keith Gill revealed a significant position, while Berkshire Hathaway saw a 0.59% increase following a technical issue resolution on the NYSE. NVIDIA shares rose 4.90% after a positive analyst rating and CEO keynote speech. SoFi Technologies fell by 1.88% amid a leadership change, and Tesla dropped 1.01% amid governance concerns involving Elon Musk.