Traditional supermarkets last year lost food retail market share to nontraditional grocery competitors and convenience stores, according to new research from Inmar Analytics. In 2018, the traditional grocery retail channel — supermarkets, fresh formats, limited-assortment stores, superwarehouses and small grocery stores — saw sales decline 1.1% to $547.63 billion, lowering dollar share 1.7% year over year to 43.8%, Inmar said in its 2019 Future of Food Retailing Report. The channel’s total store count dipped 0.5% to 40,379.