 Shares of department store retailers including Macys Inc. up 22, Nordstrom Inc. up 20.7 and Kohls Corp. up 12.4 jumped in Monday premarket trading after Pfizer Inc. and BioNTech SE announced a successful COVID-19 vaccine trial. Department stores, which suffered prior to the pandemic, struggled even more as shoppers avoided malls and stores in favor of e-commerce. 