That’s according to a report by shopper intelligence firm Catalina, which found that the opening of U.S. stores by Lidl was less disruptive to competing supermarkets than some grocers had originally feared. Catalina found that nearby incumbent supermarkets lost close to 7% of overall sales during the first month of a Lidl store opening, but the impact on those same stores declined rapidly, falling to less than 2% of store sales by the fourth month.