OLIN market cap OLN

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

OLIN is worth $1.8B at the close on Oct 23, 2026, at $15.66 a share.

That is down 35% over the last year and down 80% over five years.

Its highest close in our data was $10.3B in Nov 2021.

Market cap over time

Year	End of year	Low	High	Change
2026 so far	$1.8B	$1.7B	$3.3B	−25%
2025	$2.4B	$2.1B	$3.9B	−39%
2024	$3.9B	$3.9B	$7.1B	−40%
2023	$6.6B	$5.2B	$8.7B	−9%
2022	$7.3B	$6.2B	$10.1B	−21%
2021	$9.2B	$3.8B	$10.3B	+136%
2020	$3.9B	$1.5B	$4.1B	+41%
2019	$2.8B	$2.5B	$4.4B	−16%
2018	$3.3B	$3.1B	$6.4B	−45%
2017	$5.9B	$4.4B	$6.1B	+40%
2016	$4.2B	$2.1B	$4.3B	+49%
2015	$2.8B	$1.3B	$3.6B	+58%
2014	$1.8B	$1.7B	$2.3B	−22%
2013	$2.3B	$1.8B	$2.3B	+36%
2012	$1.7B	$1.5B	$1.9B	+8%
2011	$1.6B	$1.4B	$2.1B	−4%
2010	$1.6B	$1.4B	$1.7B	n/a

Companies in Chemicals nearest OLIN's size, closest first, today.