Compare stocks

Blackstone is the world's largest alternative-asset manager with $1.346 trillion in total assets under management, including $961.6 billion in fee-earning assets under management, at the end of June 2026. The company operates with scale in each of its major product lines: private equity (28% of fee-earning AUM and 35% of base management fees), real estate/real assets (29% and 32%), credit and insurance (33% and 25%), and other alternatives (10% and 8%). While the firm primarily serves institutional investors (84% of AUM), it also caters to clients in the high-net-worth channel (16%). Blackstone operates through 25 offices in the Americas (8), Europe and the Middle East (9), and the Asia-Pacific region (8).

Berkshire Hathaway is a holding company with a wide array of subsidiaries engaged in diverse activities. The firm's core business segment is insurance, run primarily through Geico, Berkshire Hathaway Reinsurance Group, and Berkshire Hathaway Primary Group. Berkshire has used the excess cash thrown off from its operations to acquire Burlington Northern Santa Fe (railroad), Berkshire Hathaway Energy (utilities and energy distributors), and the companies that make up its manufacturing, service, and retailing operations (which include Precision Castparts, Lubrizol, Clayton Homes, Marmon, and IMC/ISCAR). The conglomerate is unique in that it is run on a completely decentralized basis.