Market News
Sep. 10, 2025 OSE Adjustment and Change on Securities Options (Effective from September 24, 2025)
Trading unit change are scheduled for the underlying securities, as listed below. (effective from September 24, 2025)
In accordance with this, OSE shall adjust the trading unit of option contracts which are based upon these underlying securities on September 24, 2025, the date on which trading starts for shares after the trading unit change.
| Underlying securities | Code | Strike price* | Open interest* | Number of securities for one delivery unit* | Position limits*(units) | Large position reporting threshold for securities options*(units) | Hard Block for J-NET Trading* |
| NEXT FUNDS Gold Price Exchange Traded Fund | 1328 | No Change |
multiplied by ten | 10→1 | 1,800→21,900 | 300→4,300 | 30,000→300,000 |
| NEXT FUNDS TOPIX Banks Exchange Traded Fund | 1615 | No Change | multiplied by ten | 100→10 | 95,100→429,900 | 19,000→85,900 | No Change |
- Strike price, Open interest, Number of securities for one delivery unit, Position limits,Large position reporting threshold for securities options and Hard Block for J-NET Trading compared to September 22, 2025.
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