As of December 2025 GAMCO Investors has a market cap of โน49.93 Billion. This makes GAMCO Investors the world's 6977th 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 6th, 2025 the market cap of GAMCO Investors was reported to be: