Shares start a shaky restoration after the Delta variant unfold prompted a rout.
July 20, 2021Updated July 20, 2021, 8:40 a.m. ETJuly 20, 2021, 8:40 a.m. ETAn employee posted warnings to customers at the entrance to a store at a mall in Los Angeles on Monday.Credit...Etienne Laurent/EPA, via ShutterstockU.S. stock…