Market News
Nov. 13, 2025 OSE Adjustment and Change on Securities Options (Effective from November 27, 2025)
Stock splits are scheduled for the underlying securities, as listed below. (effective from December 1, 2025)
In accordance with this, OSE shall adjust the strike prices of option contracts which are based upon these underlying securities on November 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* |
| SBI Holdings, Inc. | 8473 | divided by two | multiplied by two | No Change | 30,300→66,000 | 6,000→13,200 | 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 November 26, 2025.
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