Market News
Jun. 13, 2025 OSE Adjustment and Change on Securities Options (Effective from June 27, 2025)
Investment unit splits are scheduled for the underlying securities, as listed below. (effective from July 1, 2025)
In accordance with this, OSE shall adjust the strike prices of option contracts which are based upon these underlying securities on June 27, 2025, the date on which trading starts for shares after the stock splits.
| 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* |
| Japan Prime Realty Investment Corporation | 8955 | divided by four | multiplied by four | No Change | 9,900→39,800 | 1,900→7,900 | 30,000→300,000 |
- 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 June 26, 2025.
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