ATI Inc. (ATI) - Market capitalization

Market cap: £12.11 Billion

As of February 2026 ATI Inc. has a market cap of £12.11 Billion. This makes ATI Inc. the world's 1346th 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 ATI Inc. from 1997 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£12.11 B	1.23%
2025	£11.96 B	89.9%
2024	£6.30 B	38.42%
2023	£4.55 B	42.55%
2022	£3.19 B	112.71%
2021	£1.50 B	-3.75%
2020	£1.56 B	-21.46%
2019	£1.98 B	-7.84%
2018	£2.15 B	-4.12%
2017	£2.24 B	59.86%
2016	£1.40 B	69.68%
2015	£0.82 B	-65.86%
2014	£2.42 B	4.09%
2013	£2.33 B	15.62%
2012	£2.01 B	-38.33%
2011	£3.27 B	-7.14%
2010	£3.52 B	29.82%
2009	£2.71 B	61.76%
2008	£1.67 B	-61.79%
2007	£4.39 B	-6.29%
2006	£4.68 B	128.03%
2005	£2.05 B	90.04%
2004	£1.08 B	81.38%
2003	£0.59 B	90.25%
2002	£0.31 B	-66.23%
2001	£0.92 B	8.58%
2000	£0.85 B	-31.9%
1999	£1.25 B	-41.64%
1998	£2.15 B	-22.48%
1997	£2.77 B

End of Day market cap according to different sources

On Jan 31st, 2026 the market cap of ATI Inc. was reported to be:

£11.94 Billion

by Nasdaq

£12.11 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Kennametal KMT	£1.91 B	-84.19%	🇺🇸 USA
Haynes International HAYN	£0.56 B	-95.30%	🇺🇸 USA
Valmont Industries VMI	£6.42 B	-46.96%	🇺🇸 USA
Carpenter Technology CRS	£11.57 B	-4.45%	🇺🇸 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 ATI Inc. (ATI)

Market cap: £12.11 Billion