WingArc1st (4432) Investor Day 2026 presentation summary

AI adoption and digital trust

• SWE-bench scores show a sharp rise in models scoring 70 or higher; software engineering work has changed substantially since AI’s limited coding capability in 2023.

• The presentation frames context rot, operational stability and cost as three obstacles to practical business AI; accuracy fell 29% as context increased 32-fold in cited research.

• AI-generated receipts made up 70.8% of flagged fraudulent cases in May 2026, according to AppZen data; image-only receipts are no longer sufficient evidence.

• Trustee’s timestamping service was in use at ~500 companies; eSeal launched in May 2026 and electronic signature was scheduled for December 2026.

• Planned digital-document capabilities include eSeal and timestamping across the SVF platform, plus electronic signatures in SVF Transact for forms requiring many customer signatures.

AI platform and operating model

• The target is a platform that applies GenAI where it can deliver high-precision outcomes while limiting operating costs; business logic can be generated during construction and run without AI in operation.

• A survey of 326 users found 45.7% faced lower-than-expected accuracy or reproducibility, while 44.5% cited more data preparation than expected in GenAI analysis tasks.

• Dr.Sum Ver.6.0, released as the first major upgrade in nine years, offers up to 12x faster aggregation and GenAI integration; Dr.Sum DataCatalog launched as a freemium service.

• Data catalogs are positioned to add business context, definitions, lineage, reliability, ownership and confidentiality metadata, helping prepare data for AI use.

Public sector growth strategy

• Japan’s 1,741 local governments are the target DX market; common operations and needs, existing product deployments and standardization support horizontal expansion.

• Govlong EUC had been adopted by 500 local governments as of June 2026, with a goal of reaching 1,000; standardization content covers 20 processes, ~1,400 tables, 1,915 forms and 507 interfaces.

• Strategy spans expanding standardization deployments, adjacent resident-service DX and new services connecting resident touchpoints with administrative operations through data.

• Digital notices target non-tax communications such as child-rearing, welfare and benefits; demonstrations and early implementations were planned for 2026, with official release targeted for 2027.

• Standardized core data, co-creation with major cities and partner integration are intended to support AI use and improve administration, policy-making and resident services.