Why are US stock market index futures down and Dow Jones, S&P 500 and Nasdaq in red today? Wall Street futures drop, analysts insights and market outlook explained. Here's what should investors do now

Why are US stock market index futures down and Dow Jones, S&P 500 and Nasdaq in red today? Wall Street futures fell more than 1% as Middle East conflict widened. Oil prices rose. Gold gained. Treasury yields hit lows. Investors now await key U.S. economic data this week.