As of October 2026 MIAX (Miami International Holdings) has a market cap of โน295.70 Billion. This makes MIAX (Miami International Holdings) the world's 4104th 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 Oct 8th, 2026 the market cap of MIAX (Miami International Holdings) was reported to be: