Olin Corporation revenue by segment OLN

Annual Quarterly

Olin Corporation splits its revenue 2 ways in its filings. By operating segments, the largest line in fiscal 2025, which ended Dec 31, 2025 was Chlor Alkali Productsand Vinyls at $3.7 billion, 54% of the total. By sales mix, the largest line in fiscal 2025, which ended Dec 31, 2025 was Chlorinechlorinederivativesandothercoproducts at $2.1 billion, 30% of the total.

USD in millions. The percent under a figure is the change from the year before.

Line	FY 2026 Sep 30, 2026	FY 2025 Dec 31, 2025	FY 2024 Dec 31, 2024	FY 2023 Dec 31, 2023	FY 2022 Dec 31, 2022	FY 2021 Dec 31, 2021	FY 2020 Dec 31, 2020	FY 2019 Dec 31, 2019	FY 2018 Dec 31, 2018	FY 2017 Dec 31, 2017	FY 2016 Dec 31, 2016
Revenue	6,738	6,781	6,540	6,833	9,376	8,911	5,758	6,110	6,946	6,268	5,551
Operating segments
Chlor Alkali Productsand Vinyls	3,284 -13.2% share 48.7%	3,684 +1.5% share 54.3%	3,630 -9.1% share 55.5%	3,995 -21.4% share 58.5%	5,085 +22.8% share 54.2%	4,141 +39.9% share 46.5%	2,960 -13.5% share 51.4%	3,420 -14.2% share 56.0%	3,987 +13.9% share 57.4%	3,501 share 55.8%	—
Winchester	1,905 +11.4% share 28.3%	1,725 +2.4% share 25.4%	1,684 +11.6% share 25.7%	1,509 -5.7% share 22.1%	1,601 +1.1% share 17.1%	1,584 +70.7% share 17.8%	928 +39.4% share 16.1%	666 +1.4% share 10.9%	656 -3.7% share 9.4%	681 share 10.9%	—
Epoxy	1,549 +19.7% share 23.0%	1,372 +11.9% share 20.2%	1,226 -7.7% share 18.8%	1,329 -50.6% share 19.5%	2,690 -15.6% share 28.7%	3,186 +70.3% share 35.8%	1,870 -7.6% share 32.5%	2,024 -12.1% share 33.1%	2,303 +10.4% share 33.2%	2,086 share 33.3%	—
Sales mix
Chlorinechlorinederivativesandothercoproducts	1,843 -12.5% share 27.4%	2,052 -2.4% share 30.3%	2,103 -4.6% share 32.2%	2,205 -18.2% share 32.3%	2,696 +18.7% share 28.8%	2,272 +46.4% share 25.5%	1,552 -7.8% share 26.9%	1,683 -5.9% share 27.5%	1,788 +12.0% share 25.7%	1,596 share 25.5%	—
Causticsoda	1,441 -14.0% share 21.4%	1,632 +6.9% share 24.1%	1,527 -14.7% share 23.3%	1,790 -25.1% share 26.2%	2,389 +27.8% share 25.5%	1,869 +32.7% share 21.0%	1,408 -18.9% share 24.5%	1,737 -21.0% share 28.4%	2,199 +15.5% share 31.7%	1,904 share 30.4%	—
Militaryandlawenforcement	1,192 +14.8% share 17.7%	1,088 +28.5% share 16.0%	847 +20.6% share 13.0%	702 +34.6% share 10.3%	522 +8.7% share 5.6%	480 +67.1% share 5.4%	287 +28.1% share 5.0%	224 -2.0% share 3.7%	229 +8.8% share 3.3%	210 share 3.4%	—
Epoxyresins	898 +16.5% share 13.3%	807 +13.0% share 11.9%	714 -11.2% share 10.9%	804 -40.5% share 11.8%	1,352 -22.1% share 14.4%	1,736 +65.4% share 19.5%	1,050 -2.7% share 18.2%	1,079 -6.8% share 17.7%	1,157 +11.8% share 16.7%	1,035 share 16.5%	—
Commercial	713 +6.1% share 10.6%	636 -23.9% share 9.4%	837 +3.7% share 12.8%	806 -25.3% share 11.8%	1,079 -2.3% share 11.5%	1,104 +72.4% share 12.4%	640 +45.1% share 11.1%	441 +3.2% share 7.2%	428 -9.2% share 6.2%	471 share 7.5%	—
Aromaticsandallylics	651 +24.4% share 9.7%	565 +10.2% share 8.3%	512 -2.5% share 7.8%	525 -60.8% share 7.7%	1,339 -7.7% share 14.3%	1,450 +76.7% share 16.3%	821 -13.1% share 14.3%	945 -17.5% share 15.5%	1,146 +9.0% share 16.5%	1,051 share 16.8%	—

How these figures are calculated

Annual columns are full-year amounts from the annual report (Form 10-K, 20-F, or 40-F). If a company restates a year, the latest filed number is shown. USD in millions. Each group is a separate split of total revenue, so the groups are not added together. Share of revenue is that line divided by total revenue. The first column adds the latest year-to-date segment amount to the last fiscal year and subtracts the year-ago year-to-date amount. More on our methodology.

Company profile

Industry: Chemicals & Allied Products (SIC 2800)
Listed as: OLN (NYSE)
Fiscal year ends: December 31
Incorporated in: VA
Headquarters: Clayton, MO
SEC filer status: Large accelerated filer
SEC CIK: 74303

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.