InvestmentsTop Global NewsMarketsReal Estate Burger chain Shake Shack posts bigger-than-expected quarterly loss By financialnews_rlv83x - July 30, 2020 0 167 Shake Shack Inc posted a bigger-than-expected quarterly loss on Thursday, as the burger chain temporarily closed some restaurants and limited working hours due to COVID-19 lockdowns and civil unrest that gripped several U.S. cities.