Stock Market Today: Russell 2000, Nasdaq Take Flight After Surprising Inflation, Jobless Claims Data

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 Wednesday. This is TheStreet’s Stock Market Today for Dec. 17, 2025. You can follow the latest updates on the market here in our daily live blog. Update: 11:34 a.m ET In Focus: S&P 500 An astonishing 70.3% (3,912) U.S. issues are rising today against 26% (1,445) in decline. For a moment though, we turn our attention to the S&P 500(+1.04%) - ...