Traders work during the opening bell at the New York Stock Exchange (NYSE) on March 16, 2020 at Wall Street in New York City. - Trading on Wall Street was halted immediately after the opening bell Monday, as stocks posted steep losses following emergency moves by the Federal Reserve to try to avert a recession due to the coronavirus pandemic.Just after the opening bell, the S&P 500 was at 2,490.47, a drop of 8.1 percent and beyond the seven percent loss that automatically triggers a 15-minute trading halt. (Photo by Johannes EISELE / AFP)