Dow is trading at $39.16, up 38.91%, after closing at $28.19 on September 22, 2026; no verified company-specific announcement or earnings release explains the sharp after-hours move.
- Recent coverage concerned a September 9 report that Dow was considering exiting its Sadara Chemical partnership with Saudi Aramco; no final decision was reported.
- Broader markets were mixed and do not explain the spike.