Latest update

Due to an ongoing global Microsoft outage, HKEX's email services are currently impacted. All market operations are continuing as normal. HKEX's teams are closely monitoring the situation, and we will provide further information as updates are available. 

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Corporate News Releases
Market Communications
Regulatory Announcements
Participant and Members Circulars
Notices
Market Consultations
Trading Information
SEOCH
05
Nov 2026
Orion Derivatives Platform: Upcoming Town Hallpdf
Ref Number: PT/CLR/SEOCH/078/2026
SEOCH
03
Nov 2026
Collateral Haircut Adjustmentpdf
Ref Number: ORM/CRC/288/2026
SEOCH
02
Nov 2026
Margin Parameters and Update of PC-SPAN Organisation Master File for New Stock Option Classespdf
Ref Number: ORM/CRC/279/2026
SEOCH
02
Nov 2026
SEOCH Reserve Fund Variable Contributionspdf
Ref Number: ORM/CRC/282/2026
SEOCH
30
Oct 2026
1) Regular DCASS / CCMS / Report Access Platform (RAP) Data Centre Failover Rehearsal on 21 November 2026 2) Suspension of RAP servicespdf
Ref Number: PT/CLR/SEOCH/075/2026
SEOCH
26
Oct 2026
Download and Upgrade of Google Chrome Browser for DCASS Online pdf
Ref Number: PT/CLR/SEOCH/073/2026
SEOCH
23
Oct 2026
Updates on Market Readiness for Supporting Settlement Services in Hong Kong Securities Market on Half-Day Trading Dayspdf
Ref Number: PT/CLR/SEOCH/071/2026
SEOCH
20
Oct 2026
Updates on Standardization of Date Format in DCASS Risk Management Reports (including Risk Parameter Files)pdf
Ref Number: ORM/CRC/269/2026
SEOCH
16
Oct 2026
Implementation of T+1 Settlement Cycle for Hong Kong Cash Marketpdf
Ref Number: PT/CLR/SEOCH/068/2026
SEOCH
16
Oct 2026
Launch of Acceptance of China Government Bonds as Non-Cash Collateral in SEOCHpdf
Ref Number: PT/SCS/070/2026
SEOCH
16
Oct 2026
Amendments to the Options Clearing Rules and the Operational Clearing Procedures for Options Trading Exchange Participants of The SEHK Options Clearing House Limited pdf
Ref Number: LSD/068/2026
SEOCH
05
Oct 2026
Collateral Haircut Adjustmentpdf
Ref Number: ORM/CRC/254/2026
SEOCH
02
Oct 2026
SEOCH Reserve Fund Variable Contributionspdf
Ref Number: ORM/CRC/250/2026
SEOCHHKEX Rule EnforcementStock Connect
28
Sep 2026
Compliance Bulletin (Issue No. 19) - (1) Standard Penalties under HKEX Rules; (2) Participants’ Obligation to Make Timely Submissions to HKEX; (3) Client Protection Measures; and (4) Updated Guidelines on Client Margin Requirementspdf
Ref Number: MSM/011/2026
SEOCH
25
Sep 2026
Acceptance of China Government Bonds as Non-Cash Collateral in SEOCHpdf
Ref Number: PT/SCS/067/2026
SEOCH
22
Sep 2026
Reminder on Payment Obligations of Clearing Participantspdf
Ref Number: ORM/CRC/239/2026
SEOCH
10
Sep 2026
Suspension of Report Access Platform (RAP) service on the following weekendspdf
Ref Number: PT/OEC/SEOCH/065/2026
SEOCH
02
Sep 2026
Collateral Haircut Adjustmentpdf
Ref Number: ORM/CRC/224/2026
SEOCH
02
Sep 2026
Stock Collateral Haircutpdf
Ref Number: ORM/CRC/221/2026
SEOCH
01
Sep 2026
SEOCH Reserve Fund Variable Contributionspdf
Ref Number: ORM/CRC/219/2026
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