Dow Jones, S&P 500, Nasdaq drop after Donald Trump’s new 15% US tariff update — Here’s what investors need to know by Live mint | February 23, 2026 9:09 pm | Indian Stocks, Market, News Dow Jones, S&P 500, and Nasdaq dropped during the trading session on 23 February 2026, following US President Donald Trump’s 15% US tariff announcement over the weekend. Here’s what investors need to know.