When Amazon.com Inc. bought Whole Foods last year, Kemper Isely worried about how his regional health-food chain would compete with the e-commerce giant. A year later, the chief executive of Natural Grocers by Vitamin Cottage Inc. is sleeping better. Sales are up, shares have nearly doubled since January and the Colorado-based company is expanding its network of 147 stores. Executives...

Source: Wall Street Journal August 26, 2018 19:57 UTC