The investigation centers on a July 30 disclosure regarding an unplanned shutdown of a vinyl chloride monomer plant in Freeport, Texas. Olin executives reported that the mechanical failure slashed second-quarter adjusted EBITDA by $40 million. Furthermore, the company warned investors to expect an additional $20 million financial hit in the third quarter as operations slowly return to full capacity.

Following the announcement, Olin shares tumbled $3.66, closing at $18.51 on July 31, 2026. Investors who suffered losses are now being urged to contact Danielle Peyton at Pomerantz LLP to discuss potential participation in a class action lawsuit. The firm, which maintains offices globally, is currently evaluating whether internal disclosures accurately reflected the company’s operational risks prior to the market downturn.