Established in 1990, Apollo Investment Corporation is a publicly traded company that generates current income and capital appreciation through debt and equity financing. It is one of the leading providers of subordinated debt and equity capital to middle-market companies. The company makes investments in various companies through common stocks, equity interests, and mezzanine and senior-secured loans. Its investments range from $20 million up to $250 million. The company invests in the cable television, chemical, consumer product, direct marketing, distribution, energy, financial, health care, manufacturing, media, publishing, retail and transportation markets. It has invested in more than 150 companies, including Advanstar Communications, AIC Credit Opportunity Fund, Alliance Boots, Allied Security Holdings, Associated Materials, Catalina Marketing Corporation, and Advantage Sales & Marketing. The company specializes in the areas of management buyout, value orientation and risk assessment. Apollo Investment Corporation is managed by Apollo Investment Management, which is an affiliate of Apollo Global Management.