As of December 2025 Allegheny Technologies has a market cap of โน1.359 Trillion. This makes Allegheny Technologies the world's 1412th 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 14th, 2025 the market cap of Allegheny Technologies was reported to be: