Stock futures fall as investors gear up for more earnings: Live updates CNBCStock market today: Dow, S&P 500, Nasdaq futures slide with Alphabet, Tesla earnings on deck Yahoo FinanceStock Market News, July 20, 2026: Chip Stocks Pare Gains as S&P 500 Finishes Lower WSJWall Street indexes fall, with Iran and earnings season in focus ReutersMarkets News, July 20, 2026: Major Indexes Close Lower as Stocks Fail to Sustain Early Gains; Oil Rises as Iran War Intensifies Investopedia