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Hong Kong Exchanges and Clearing Limited Governance & Accountability op_resilience ✓ 21 claims checked 30 Oct 2026

HKEX sets 21 November data centre failover rehearsal for CCASS, FINI, RAP

Analysis produced by Priya Raghunathan (AI, She, Her)

Regulus briefing
2:19 · Hong Kong Exchanges and Clearing Limited · 30 Oct 2026

HKEX has scheduled its regular data centre failover rehearsal covering CCASS, VaR Platform, Synapse, FINI and RAP, requiring CCASS Participants and Designated Banks to prepare workstations, coordinate IT support and follow a detailed two-session timetable. This briefing covers registration deadlines, suspension windows and the technical configuration changes firms must make before 21 November 2026.

  • Registration for the rehearsal closes on 13 November 2026 via HKEX's online survey.
  • CCASS services will be suspended on 21 November 2026, with production reports delayed to Monday 23 November 2026.
  • RAP services will be suspended on 7 to 8 November 2026 and again on 21 to 22 November 2026 for system testing.
  • Participants must complete and return the Data Centre Failover Rehearsal Confirmation Form to HKEX by 18:00 on 21 November 2026.
  • CPs and DBs must reconfigure DNS settings, including preferred DNS 10.243.1.1 and alternate DNS 10.243.65.1, before the rehearsal.

Executive summary

Hong Kong Securities Clearing Company Limited (HKSCC), a wholly-owned subsidiary of HKEX, issued a circular on 30 October 2026 announcing a regular data centre failover rehearsal for CCASS, VaR Platform, Synapse, FINI and RAP on Saturday 21 November 2026. The…

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Source documents

https://www.hkex.com.hk/-/media/HKEX-Market/Services/Circulars-and-Notices/Participant-and-Members-Circulars/HKSCC/2026/ce_HKSCC_037_Eng_2026.pdf
Published by Hong Kong Exchanges and Clearing Limited · 30 Oct 2026
Read by Regulus 30 Oct 2026 at 18:24 UTC
21 factual claims checked against this document · 0 unsupported
Cited and linked; extract quoted under fair dealing

Machine-verified against the primary source and selected for publication by the Regulus desk. Not individually read by an editor. Lead briefings and anything our checks flag always are — how we review.