Slovenia's biggest retailer, Mercator, has acquired a 55.7% stake in one of its smaller rivals, Zivila. Mercator is reported to have offered SIT18,000 per share for the stake, in a deal worth SIT3.2bn (US$15.6m) in total. Mercator said it had informed the Securities Market Agency, the Competition Protection Office and Zivila's management about the deal, reported STA.