NEW YORK–(BUSINESS WIRE)–On July 11, 2018, Kroll Bond Rating Agency (KBRA) assigned BBB- issuer and senior unsecured debt ratings with a Stable Outlook to Apollo Investment Corporation (“AINV” or “the Company”), a business development company (BDC) that focuses on providing senior debt to U.S. middle market companies. Management of the Company’s business and execution of operations is performed by an affiliate of Apollo Global Management, LLC (NYSE: APO), a global alternative asset management