As of December 2025 GATX has a market cap of A$8.98 Billion. This makes GATX the world's 2766th 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 5th, 2025 the market cap of GATX was reported to be: