Kroger, the leading US grocery retailer, has announced it has divested its stake in Lucky’s Market, a Colorado-based chain of food stores specializing in organic products. The disposal comes less than four years after the two firms announced a “strategic partnership”, with Kroger making a “meaningful investment” that was designed to increase Lucky’s Market’s store footprint. The sale of the stake reportedly resulted in Kroger being hit with a $238 million impairment …