As of November 2026 Protagonist Therapeutics has a market cap of A$12.81 Billion. This makes Protagonist Therapeutics the world's 2189th 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 Nov 9th, 2026 the market cap of Protagonist Therapeutics was reported to be: