Market News

Mar. 27, 2025 OSE Revisions to Trading Rules for Options Trading

Osaka Exchange, Inc. (OSE) has decided to revise the tick sizes for Nikkei 225 Options and Nikkei 225 mini Options to enhance the convenience for market participants in the auction market by reducing transaction execution costs. Additionally, to promote the smooth price formation of options trading, OSE has decided to revise the Immediately Executable Price Range ("DCB Price Range") according to the reference price for index options trading and securities options trading. OSE will be accepting public comments regarding this matter starting today.
OSE will implement these changes on August 18, 2025 (Planned).