JHG vs AMG Comparison

Janus Henderson Group provides investment management services to retail intermediary (50% of managed assets), self-directed (20%) and institutional (30%) clients. At the end of September 2025, active equities (52%), fixed-income (32%), balanced (12%) and alternative (4%) investment platforms constituted the company's $484 billion in assets under management. Janus Henderson sources most of its managed assets from clients in North America (67%), with customers from Europe, the Middle East, Africa, and Latin America (25%) and the Asia-Pacific region (8%) accounting for the remainder.

Affiliated Managers Group offers investment strategies to investors through its network of affiliates. The firm typically buys a majority interest in small to mid-size boutique asset managers, receiving a fixed percentage of revenue from these firms in return. Affiliates operate independently, with AMG providing strategic, operational, and technology support, as well as global distribution. At the end of December 2025, AMG's affiliate network—which includes firms like Abacus Capital and Pantheon dedicated to private markets (which accounted for 18% of AUM), AQR Capital and Capula Investment Management in liquid alternatives (28%), and Harding Loevner, Tweedy Browne, Parnassus, and Yacktman in equities, multi-asset, and bond strategies (54%)—had $813.3 billion in managed assets.