Market News
Jun. 20, 2024 OSE Handling of Rules and Important Notes Concerning Revisions to the Tick Size for the Strategy Trading of 3-Month TONA Futures
OSE has decided to the revisions to the tick size and the expansion of combinations for the strategy trading of 3-Month TONA futures to be scheduled on July 22, 2024.
- Tick size for strategy trading will be revised from 0.0001 points to 0.0025 points.
- Calendar spread combinations will be expanded from 15 pairs to 190 pairs.
Handling of Remaining Orders
All remaining orders for 3-Month TONA Futures (including those made in outright trading as well as those made in strategy trading) shall be canceled after the end of the night session of July 19, 2024.

Note for Trading Participants
Trading participants will be required to add Tradable on TradeGuard in order to place calendar spread trading order(s) for 3-Month TONA Futures with “Contract Month difference” is greater than or equal to 6.
- “Contract month difference” means the difference between a near-term contract month and a farther-term contract month that compose the calendar spread combination. In the case of a combination of the 2nd contract month (Sep-24) and the 3rd contract month (Dec-24), the Contract month difference is 1.
- “TradeGuard” is the Pre-trade Risk Check function, which helps actualized higher reliability market.
Contact
Osaka Exchange
TEL:+81-6-4706-0800