US Stock Market Today: S&P, Nasdaq Retreat From Record Highs, Dow Down 200 Points On Renewed Iran Tensions by NDTV Profits | April 23, 2026 8:21 pm | Latest Posts, Market, Trending News S&P 500 was down0.3% at 7,117.93, whereas the tech-heavy Nasdaq Composite declined 0.43% to 24,552.72 at 9:31 am EST.