Owens Corning market cap OC

Share price times shares outstanding: what the whole company sells for, since 2010.

Owens Corning is worth $9B at the close on Oct 23, 2026, at $114.23 a share.

That is down 15% over the last year and down 4% over five years.

Its highest close in our data was $17.6B in Nov 2024.

Market cap over time

Year	End of year	Low	High	Change
2026 so far	$9B	$8B	$12.4B	−3%
2025	$9.3B	$8.4B	$16.1B	−36%
2024	$14.6B	$12.2B	$17.6B	+11%
2023	$13.2B	$8.2B	$13.5B	+65%
2022	$8B	$7.3B	$9.7B	−12%
2021	$9.1B	$8.4B	$11.2B	+11%
2020	$8.2B	$3.4B	$8.5B	+16%
2019	$7.1B	$4.8B	$7.3B	+49%
2018	$4.8B	$4.7B	$10.7B	−53%
2017	$10.2B	$5.9B	$10.2B	+75%
2016	$5.8B	$4.7B	$6.4B	+7%
2015	$5.5B	$4.2B	$5.6B	+31%
2014	$4.2B	$3.5B	$5.4B	−13%
2013	$4.8B	$4.2B	$5.3B	+12%
2012	$4.3B	$3.3B	$4.6B	+21%
2011	$3.5B	$2.7B	$4.8B	−9%
2010	$3.9B	$3.2B	$3.9B	n/a

Companies in Construction Materials nearest Owens Corning's size, closest first, today.

Company	Market cap
OCOwens Corning	$9B
HLHecla Mining	$9.3B
EXPEagle Materials	$5.4B
AMRZAmrize	$21.6B
USLMUnited States Lime & Minerals	$3.2B
KNFKnife River	$3B
MLMMartin Marietta Materials	$30.5B
VMCVulcan Materials	$33.9B
LEUCentrus Energy	$2B
TGLSTecnoglass	$1.7B
CRHCRH	$56.5B
Peer median	$7.3B