US Stock Market Today: S&P 500, Nasdaq Rally As Iran Opens Hormuz; Dow Soars 600 Points by NDTV Profits | April 17, 2026 8:20 pm | Latest Posts, Market, Trending News Dow Jones Industrial Average rose 555.37 points or 1.14%, S&P 500 also rose over 0.70%, while Nasdaq was up 0.99%.