As of December 2025 Janus Henderson has a market cap of NZ$12.59 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: