Publication,FSA Weekly Review No.704 September 29, 2026

Why this matters

This FSA Weekly Review consolidates several significant regulatory developments from mid-September 2026: (1) revised inter-ministerial cyberattack reporting agreement with new common forms adopted into FSA guidelines affecting all supervised entities; (2) Cabinet Office Orders on ETF in-kind constituent rules, digitalization of administrative penalty procedures, and definitions under the Financial Instruments and Exchange Act; (3) amended Comprehensive Guidelines for liquidity risk management in investment trusts based on IOSCO recommendations; (4) enforcement actions against insider trading, false statements, and market manipulation. The content spans multiple sectors and carries binding obligations for regulated firms. Urgency is high due to implementation requirements and compliance deadlines (e.g., October 16, 2026 public comment deadline). Significance is 4 because these are final rules and amended guidelines affecting a broad set of financial institutions, though not a single transformative precedent.

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