As of December 2025 Janus Henderson has a market cap of โน659.61 Billion. This makes Janus Henderson the world's 2440th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Dec 24th, 2025 the market cap of Janus Henderson was reported to be: