Traders work on the floor of the New York Stock Exchange during the opening bell on March 10, 2020 in New York.

Goldman Sachs on Sunday downgraded its outlook for the economy in the first two quarters of 2020 as the coronavirus zaps all growth from the U.S.

Jan Hatzius, Goldman's chief economist, lowered his first-quarter GDP growth forecast to zero from 0.7%. The economist also sees a 5% contraction in the second quarter, followed by a sharp snapback for the remainder of the year.