Market News
May 15, 2025 OSE Adjustment and Change on Securities Options (Effective from May 29, 2025)
Investment unit splits are scheduled for the underlying securities, as listed below. (effective from June 1, 2025)
In accordance with this, OSE shall adjust the strike prices of option contracts which are based upon these underlying securities on May 29, 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* |
| Activia Properties Inc. | 3279 | divided by three | multiplied by three | No Change | 7,900→23,700 | 1,500→4,700 | 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 May 28, 2025.
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