BLK vs BX Comparison

BlackRock is the largest asset manager in the world, with $11.584 trillion in assets under management at the end of March 2025. Its product mix is diverse, with 53% of managed assets in equity strategies, 26% in fixed income, 9% in multi-asset classes, 8% in money market funds, and 4% in alternatives. Passive strategies account for two thirds of long-term AUM, with the company's ETF platform maintaining a leading market share domestically and on a global basis. Product distribution is weighted more toward institutional clients, which by our calculations account for around 80% of AUM. BlackRock is geographically diverse, with clients in more than 100 countries and more than one third of managed assets coming from investors domiciled outside the US and Canada.

Blackstone is the world's largest alternative-asset manager with $1.167 trillion in total asset under management, including $860.1 billion in fee-earning assets under management, at the end of March 2025. The company has four core business segments: private equity (26% of fee-earning AUM and 30% of base management fees), real estate (34% and 40%), credit and insurance (32% and 23%), and multi-asset investing (8% and 7%). While the firm primarily serves institutional investors (87% of AUM), it also caters to clients in the high-net-worth channel (13%). Blackstone operates through 25 offices in the Americas (8), Europe and the Middle East (9), and the Asia-Pacific region (8).