THE WOODLANDS, Texas, June 16, 2026, 12:02 (EDT).
- Huntsman shares fell sharply after Olin agreed to acquire the company in an all-stock merger.
- The fixed exchange ratio ties Huntsman’s value to Olin’s share price, which also declined.
- The next major catalyst is the SEC merger filing, shareholder votes and regulatory review.
Huntsman Corporation shares dropped Tuesday after Olin agreed to acquire the chemicals company in an all-stock merger of equals, a structure where shareholders are paid in shares rather than cash. Huntsman was recently trading at $13.06, down about 18% from Monday’s $15.89 close, after touching an intraday low of $12.55 on unusually heavy volume of nearly 14 million shares.
The pressure came from the deal math. Huntsman holders will receive 0.5476 Olin shares for each Huntsman share, an exchange ratio that tells investors how many buyer shares they receive for each target share. Reuters calculated the transaction at about $2.43 billion, with an implied $13.85 offer price based on Olin’s prior close, about 12.8% below Huntsman’s last market close. Reuters Peter Huntsman said the companies used a 30-day volume-weighted average price, or VWAP, which weights prices by trading volume, to reflect “current market conditions.” Huntsman Corporation
That matters because Huntsman is now trading more like a merger-arbitrage stock than a standalone chemicals stock. With Olin recently at $23.52, the live value of 0.5476 Olin shares is roughly $12.88 per Huntsman share, below Huntsman’s recent $13.06 price; if Olin falls, the deal value falls with it. Olin shares were also lower, recently down about 7%, which helped pull Huntsman down despite the companies’ argument that the combination should improve scale and cost position.
The bull case is straightforward: the combined OlinHuntsman would have about $12.5 billion in 2025 revenue, more than $400 million of identified cost synergies and integration benefits, and better vertical integration between Olin’s chlorine and caustic soda assets and Huntsman’s downstream formulations. Synergies mean expected cost savings or profit benefits after two companies combine. Huntsman Corporation Olin CEO Ken Lane called the deal a chance to create “a more resilient and value-focused chemicals company,” and the companies expect most of the first $300 million of benefits within 24 months after closing. Huntsman Corporation
The bear case is that Huntsman shareholders are accepting Olin stock at a time when both businesses are exposed to a difficult chemicals cycle. Reuters noted stagnant demand, higher European production costs and regulatory pressure across the sector. Reuters Huntsman’s own recent numbers also leave little room for disappointment: first-quarter revenue was $1.42 billion, but the company posted a $53 million net loss and used $91 million of free cash flow, meaning cash left the business after operating spending and capital expenditures.
The next major catalyst is the Form S-4 registration statement and joint proxy statement, the SEC documents that will spell out deal risks, financial details and the shareholder vote process. The companies expect the transaction to close in the first half of 2027, subject to regulatory approvals and votes from both Olin and Huntsman shareholders. Huntsman Corporation Based on the verified deal value and current trading, Huntsman looks broadly fairly valued but risky today: upside depends heavily on Olin’s stock recovering and the merger benefits looking credible, while downside could come from further weakness in Olin, regulatory delays, shareholder resistance or doubts over whether the promised synergies can be delivered.
