Crasus Chemical, a company spun off from Resonac Holdings, will be temporarily included in the Nikkei 225 index for one day on its listing date, September 29, 2026, before being removed the following day [1]. This decision was announced by Nikkei and is based on updated spinoff criteria for the benchmark index, which were revised in July 2025 [1]. The inclusion is specifically tied to the company's debut after separating from Resonac Holdings, a current constituent of the Nikkei 225 [1]. No market reactions, analyst opinions, or forward-looking statements were provided in the source article [1].
CONCLUSION
Crasus Chemical's one-day inclusion in the Nikkei 225 is a procedural move reflecting updated index rules for spinoffs. The event is unlikely to have a significant market impact, as no reactions or analyst commentary were mentioned. Investors should note this temporary adjustment to the index composition.