Nikkei 225 Set to Temporarily Include Newly Spun‑Off Crasus Chemical

Updated index treatment for spinoffs under new rules

Crasus Chemical, slated to begin trading on Sept. 29 after its spin‑off from Resonac Holdings, will be added to the Nikkei 225 for a single session under the revised spinoff guidelines.

September 8, 2026 18:57 JST

Nikkei said on Tuesday that Crasus Chemical, which is set to list on Sept. 29 after being spun off from Resonac Holdings—a current Nikkei 225 member—will be temporarily included in the index on its first day of trading and then dropped the next day.

This approach follows the Nikkei 225’s updated procedures for spinoff listings, which were revised in July 2025.

For more information, see the Nikkei indexes website.

Source link