Owens Corning (OC) - Market capitalization

Market cap: NZ$16.63 Billion

As of December 2025 Owens Corning has a market cap of NZ$16.63 Billion. This makes Owens Corning the world's 2007th 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 Owens Corning from 2006 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	NZ$16.63 B	-35.89%
2024	NZ$25.94 B	24.55%
2023	NZ$20.83 B	64.12%
2022	NZ$12.69 B	-4.66%
2021	NZ$13.31 B	17.16%
2020	NZ$11.36 B	7.83%
2019	NZ$10.53 B	46.8%
2018	NZ$7.17 B	-50.15%
2017	NZ$14.40 B	70.72%
2016	NZ$8.43 B	5.91%
2015	NZ$7.96 B	47.92%
2014	NZ$5.38 B	-7.77%
2013	NZ$5.83 B	9.74%
2012	NZ$5.31 B	19.58%
2011	NZ$4.44 B	-11.22%
2010	NZ$5.01 B	11.07%
2009	NZ$4.51 B	18.05%
2008	NZ$3.82 B	9.96%
2007	NZ$3.47 B	-37.44%
2006	NZ$5.55 B

End of Day market cap according to different sources

On Dec 19th, 2025 the market cap of Owens Corning was reported to be:

NZ$16.34 Billion

by Nasdaq

NZ$16.63 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Louisiana-Pacific LPX	NZ$9.77 B	-41.25%	🇺🇸 USA
PPG Industries PPG	NZ$40.24 B	141.94%	🇺🇸 USA
Corning GLW	NZ$130.82 B	686.41%	🇺🇸 USA
Patrick Industries PATK	NZ$6.39 B	-61.54%	🇺🇸 USA
Aspen Aerogels ASPN	NZ$0.42 B	-97.45%	🇺🇸 USA
Dow DOW	NZ$28.71 B	72.60%	🇺🇸 USA
Masco MAS	NZ$23.31 B	40.15%	🇺🇸 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 Owens Corning (OC)

Market cap: NZ$16.63 Billion