Market News
Nov. 05, 2025 OSE Notional Amount of Single Stock Options Trades in October 2025 Hits Post-Integration High for Second Consecutive Month
Osaka Exchange (OSE) is pleased to announce that the notional amount of trades in single stock options (SSOs) in October 2025 reached approximately JPY 96.8 billion, marking the highest level since the integration of the OSE and Tokyo Stock Exchange derivatives markets in 2014.
With earnings announcements approaching for many companies, this significantly surpasses the previous high of JPY 68.5 billion set in September 2025, marking a record for the second consecutive month.
For details on the record set in September 2025, please refer to the Market News below.
Trading Rankings (Notional Amount-Based)
The underlying securities of the top ten SSOs traded in October 2025 are listed in the table below.
| Code | Underlying Security | Notional Amount Traded |
| 1321 | NEXT FUNDS Nikkei 225 Exchange Traded Fund | JPY 16.5 billion |
| 7203 | TOYOTA MOTOR CORPORATION | JPY 7.3 billion |
| 8035 | Tokyo Electron Limited | JPY 7.3 billion |
| 8306 | Mitsubishi UFJ Financial Group,Inc. | JPY 6.9 billion |
| 9984 | SoftBank Group Corp. | JPY 6.5 billion |
| 4063 | Shin-Etsu Chemical Co.,Ltd. | JPY 4.6 billion |
| 8316 | Sumitomo Mitsui Financial Group,Inc. | JPY 4.5 billion |
| 6301 | KOMATSU LTD. | JPY 4.1 billion |
| 9532 | OSAKA GAS CO.,LTD. | JPY 3.6 billion |
| 8801 | Mitsui Fudosan Co.,Ltd. | JPY 2.9 billion |
OSE will continue its efforts to improve efficiency in the SSO market in order to meet the needs of market stakeholders.
For Reference (More on the SSO market)
Please utilize the following links for more information on the SSO market:
Options Quotes for SSO
Japan's Single Stock Options Markets Primed for Revitalization after Regulatory Improvements
Contact
Osaka Exchange
TEL:+81-6-4706-0800 (Operator)