Wall Street opens higher as Dow jumps 400 points

US stock markets surged on Monday, with the Dow, Nasdaq, and S&P 500 all climbing over 1% amid positive investor sentiment. Gold and crude oil prices also rose, reflecting safe-haven demand and geopolitical concerns. Meanwhile, the 10-year Treasury yield dipped slightly, and the euro weakened against the dollar, while the VIX index showed easing investor anxiety.