Money Simon Property Group closes all of its U.S. malls due to coronavirus. See the list of closed locations. March 18, 2020March 18, 2020Kelly Tyko, USA TODAYComments Off on Simon Property Group closes all of its U.S. malls due to coronavirus. See the list of closed locations. Simon Property Group, the largest owner of shopping malls in the nation, is closing all of its malls and retail properties because of the coronavirus.