Huntsman and Olin Announce All-Stock Merger of Equals to Form $12.5B OlinHuntsman Corporation
HUN sits 80% above its 52-week low of $7.295 on elevated volume (5.0× avg).
Summary
Huntsman and Olin announced an all-stock merger of equals to form OlinHuntsman Corporation, a new $12.5 billion chemicals leader with significant synergy targets.
Key Events · M&A and Partnerships · HUN
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Merger of Equals Announced
Huntsman Corporation and Olin Corporation will combine in an all-stock merger of equals, creating OlinHuntsman Corporation, a $12.5 billion North American chemicals leader.
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Share Exchange Ratio
Huntsman shareholders will receive 0.5476 shares of Olin for each Huntsman share, resulting in Olin shareholders owning 54.5% and Huntsman shareholders 45.5% of the combined company.
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Significant Synergy Targets
The merger is expected to generate over $400 million in annual synergies, including $300M+ in integration benefits by year 3 and $100M+ in raw material integration benefits by 2031, plus $125M in cash tax benefits.
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New Leadership and Governance
The combined company will be headquartered in The Woodlands, Texas, with Peter Huntsman as Non-Executive Chairman and Kenneth Lane as CEO. The board will have balanced representation from both companies.
Analysis · HUN · Industrial Applications And Services
This filing details the transformational all-stock merger of equals between Huntsman and Olin, creating a new $12.5 billion chemicals leader. The combination aims to achieve over $400 million in annual synergies through increased scale, vertical integration, and improved cost competitiveness. This event fundamentally alters the company's strategic direction and future financial profile, requiring shareholder and regulatory approvals by H1 2027.
How filings like this one have moved
In the 30 days to Sep 13, 2026, 42% of the 419 measured filings Wiseek scored 9 moved their stock by 5% or more by the next session's close. The median move was -0.47%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, HUN was trading at $13.15 on NYSE in the Industrial Applications And Services sector, with a market capitalization of approximately $2.3B. The 52-week trading range was $7.30 to $16.09. This filing was assessed with positive market sentiment and an importance score of 9 out of 10.