APO vs ET Comparison

Apollo is one of the world's largest alternative asset managers, with $938.4 billion in total assets under management, or AUM, including $709.1 billion in fee-earning assets, at the end of 2025. The company has two core operating segments: asset management and retirement services. Apollo operates with scale in each of its major product lines—private equity (with $128.4 billion in total AUM and $75.0 billion in fee-earning AUM), real estate/real assets ($60.8 billion/$27.6 billion), and credit ($749.2 billion/$606.5 billion). Apollo has a distribution profile that is likely not too far off from the industry averages—with 84% of its assets held by institutional investors and 16% by high-net-worth clients.

Energy Transfer is a diversified midstream firm, operating from wellhead to consuming demand. It handles natural gas, natural gas liquids, or NGLs, crude oil, and refined products. Commodities are moved through its network of field level gathering and processing to refineries and demand centers. Operations are concentrated in Texas and the Midcontinent United States. It also controls Sunoco and USA Compression through its general partner relationship.