Stifel upgrades this mall stock, saying Monday's sell-off went too far

Shoppers ascend and descend escalators at the King of Prussia Mall, owned by Simon Property Group, United State's largest retail shopping space, in King of Prussia, Pennsylvania.
Mark Makela | Reuters

The market has turned too negative on Simon Property Group, and investors should jump in to take advantage of a rebound, according to investment firm Stifel.