Allegheny Technologies (ATI) - Market capitalization

Market cap: €12.79 Billion

As of December 2025 Allegheny Technologies has a market cap of €12.79 Billion. 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.

Market cap history of Allegheny Technologies from 1997 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	€12.79 B	68.31%
2024	€7.60 B	44.85%
2023	€5.24 B	45.66%
2022	€3.60 B	101.27%
2021	€1.78 B	3.52%
2020	€1.72 B	-25.64%
2019	€2.32 B	-2.78%
2018	€2.39 B	-5.55%
2017	€2.53 B	53.5%
2016	€1.64 B	46.86%
2015	€1.12 B	-63.86%
2014	€3.10 B	11.56%
2013	€2.78 B	13.02%
2012	€2.46 B	-37.03%
2011	€3.91 B	-4.24%
2010	€4.08 B	33.4%
2009	€3.06 B	74.27%
2008	€1.75 B	-70.56%
2007	€5.97 B	-14.11%
2006	€6.95 B	132.53%
2005	€2.99 B	95.47%
2004	€1.53 B	80.67%
2003	€0.84 B	76.23%
2002	€0.48 B	-68.45%
2001	€1.52 B	12.51%
2000	€1.35 B	-32.81%
1999	€2.01 B	-33.12%
1998	€3.01 B	-21.53%
1997	€3.83 B

End of Day market cap according to different sources

On Dec 12th, 2025 the market cap of Allegheny Technologies was reported to be:

€12.61 Billion

by Nasdaq

€12.79 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Haynes International HAYN	€0.66 B	-94.81%	🇺🇸 USA
Carpenter Technology CRS	€13.65 B	6.76%	🇺🇸 USA
Valmont Industries VMI	€7.02 B	-45.12%	🇺🇸 USA
Kennametal KMT	€1.90 B	-85.11%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of Allegheny Technologies (ATI)

Market cap: €12.79 Billion