Apollo Global Management, Inc. is an American asset management firm that primarily invests in alternative assets. As of 2022, the company had $548 billion of assets under management, including $392 billion invested in credit, including mezzanine capital, hedge funds, non-performing loans, and collateralized loan obligations, $99 billion invested in private equity, and $46.2 billion invested in real assets, which includes real estate and infrastructure. The company invests money on behalf of pension funds, financial endowments, and sovereign wealth funds, as well as other institutional and individual investors.

An alternative investment, also known as an alternative asset or alternative investment fund (AIF), is an investment in any asset class excluding capital stocks, bonds, and cash. The term is a relatively loose one and includes tangible assets such as precious metals, collectibles and some financial assets such as real estate, commodities, private equity, distressed securities, hedge funds, exchange funds, carbon credits, venture capital, film production, financial derivatives, cryptocurrencies, non-fungible tokens, and Tax Receivable Agreements. Investments in real estate, forestry and shipping are also often termed "alternative" despite the ancient use of such real assets to enhance and preserve wealth. Alternative investments are to be contrasted with traditional investments.