This live blog is refreshed periodically throughout the day with the latest updates from the market. To find the latest Stock Market Today threads, click here. Happy Friday. This is TheStreet's Stock Market Today for Sept. 19, 2025. You can follow the latest updates on the market here in our daily live blog. Update: 9:31 a.m. ET Opening Bell: Up and Away The U.S. equity markets are now open. The Nasdaq (+0.44%) led the pack, followed by the S&P 500 (+0.27%), Dow (+0.20%), and Russell 2000 (-0.02%). We'l ...