ATLANTA–(BUSINESS WIRE)–Americold Realty Trust (NYSE:COLD), the world’s largest owner and operator of temperature-controlled warehouses, today announced that the Company received investment grade ratings from Fitch Ratings and Morningstar Credit Ratings. Fitch has assigned an Issuer Default Rating of BBB to the Company with a Stable outlook. Morningstar has assigned a Credit Rating of BBB to the Company with a Stable outlook. “The receipt of these investment grade ratings is a significant mil