System outage affecting the FX Securities Collateral Service and measures for customers
SBI Securities Co., Ltd. (a consolidated subsidiary of the filing company)
FX Securities Collateral Service
An operations staff member at Internet Initiative Japan Inc., the subcontractor, mistakenly identified the delayed arrival of the collateral securities information file as being for a different process and did not rerun the process that should have been performed. The system design and operating procedures, which allowed subsequent processing to proceed without confirming that all necessary files had arrived, were also causes.
Company response
Suspension of forced liquidations based on the 2:00 a.m. determination on 13 October 2026 for additional margin arising from this outage
5:30 a.m. on 13 October 2026 (restoration completed through emergency maintenance)
Require the subcontractor to review its confirmation and rerun procedures for file transfers and ensure compliance with those procedures, while our company verifies implementation; review the management framework for contractors, including subcontractors, and strengthen supervision by our company; establish a framework for providing customers with information more promptly and clearly when an outage occurs
The impact on the Company's results is immaterial.
After confirming each customer's wishes, the company will provide individual assistance based primarily on returning customers to the state that would have existed had this outage not occurred, namely, restoring their positions. The company will implement measures to prevent recurrence and strengthen its system management framework, including for contractors and subcontractors.
| Item | Details |
|---|---|
| Event name | System outage affecting the FX Securities Collateral Service and measures for customers |
| Date of occurrence | At the start of trading on Monday, 12 October 2026, a public holiday |
| Subject Entity | SBI Securities Co., Ltd. (a consolidated subsidiary of the filing company) |
| Target Locations / Products | FX Securities Collateral Service |
| Cause | An operations staff member at Internet Initiative Japan Inc., the subcontractor, mistakenly identified the delayed arrival of the collateral securities information file as being for a different process and did not rerun the process that should have been performed. The system design and operating procedures, which allowed subsequent processing to proceed without confirming that all necessary files had arrived, were also causes. |
| Impact on Earnings Forecast | The impact on the Company's results is immaterial. |
| Suspended operations | Suspension of forced liquidations based on the 2:00 a.m. determination on 13 October 2026 for additional margin arising from this outage |
| Scheduled resumption date | 5:30 a.m. on 13 October 2026 (restoration completed through emergency maintenance) |
| Measures to prevent recurrence | Require the subcontractor to review its confirmation and rerun procedures for file transfers and ensure compliance with those procedures, while our company verifies implementation; review the management framework for contractors, including subcontractors, and strengthen supervision by our company; establish a framework for providing customers with information more promptly and clearly when an outage occurs |
| Outlook | After confirming each customer's wishes, the company will provide individual assistance based primarily on returning customers to the state that would have existed had this outage not occurred, namely, restoring their positions. The company will implement measures to prevent recurrence and strengthen its system management framework, including for contractors and subcontractors. |
Items this document does not state (15)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.The direct cause was that an operations staff member at the subcontractor mistakenly identified the delayed collateral securities information file as being for a different process and did not rerun the process that was required. The system design and operating procedures, which allowed processing to proceed without confirming that all necessary files had arrived, also contributed.