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Corporate News Releases
Market Communications
Regulatory Announcements
Participant and Members Circulars
Notices
Market Consultations
Trading Information
IPO Express
13
Mar 2026
SEOCH
Reminder: SFTP Facilities Upgrade for the Report Access Platformpdf
Ref Number: PT/CLR/SEOCH/036/2026
04
Mar 2026
SEOCH
Reserve Fund Thresholdpdf
Ref Number: GRM/QRM/001/2026
04
Mar 2026
SEOCH
Stock Collateral Haircutpdf
Ref Number: ORM/CRC/071/2026
03
Mar 2026
SEOCH
Collateral Haircut Adjustmentpdf
Ref Number: ORM/CRC/068/2026
03
Mar 2026
SEOCH
Rollout of HKATS and DCASS Operating System Upgradepdf
Ref Number: PT/CLR/SEOCH/034/2026
02
Mar 2026
SEOCH
SEOCH Reserve Fund Variable Contributionspdf
Ref Number: ORM/CRC/062/2026
10
Feb 2026
SEOCH
Market Readiness for the Introduction of Additional Market Codes for Stock Option Contracts of New Underlyingpdf
Ref Number: PT/CLR/SEOCH/026/2026
10
Feb 2026
SEOCH
Risk Management Arrangements in respect of the Lunar New Year Holidays – Reminderpdf
Ref Number: ORM/CRC/049/2026
08
Feb 2026
SEOCH
Updates on HKATS and DCASS Operating System Upgradepdf
Ref Number: PT/CLR/SEOCH/024/2026
03
Feb 2026
SEOCH
Collateral Haircut Adjustmentpdf
Ref Number: ORM/CRC/039/2026
03
Feb 2026
SEOCH
Risk Management Arrangements in respect of the Lunar New Year Holidayspdf
Ref Number: ORM/CRC/034/2026
02
Feb 2026
SEOCH
SEOCH Reserve Fund Variable Contributionspdf
Ref Number: ORM/CRC/030/2026
22
Jan 2026
SEOCH
Rollout of HKATS and DCASS Operating System Upgradepdf
Ref Number: PT/OEC/SEOCH/015/2026
20
Jan 2026
SEOCH
SFTP Facilities Upgrade for the Report Access Platform - Verification Sessionpdf
Ref Number: PT/OEC/SEOCH/012/2026
12
Jan 2026
SEOCH
Margin Parameters and Update of PC-SPAN Organisation Master File for Six New Stock Option Classespdf
Ref Number: ORM/CRC/014/2026
05
Jan 2026
SEOCH
Collateral Haircut Adjustmentpdf
Ref Number: ORM/CRC/010/2026
02
Jan 2026
SEOCH
SEOCH Reserve Fund Variable Contributionspdf
Ref Number: ORM/CRC/004/2026
31
Dec 2025
SEOCH|HKEX Rule Enforcement
Compliance Bulletin (Issue No. 16) - Reminder on Hong Kong Investor Identification Regime (“HKIDR”) BCAN-CID Mapping File Submission Requirementspdf
Ref Number: MSM/014/2025
23
Dec 2025
SEOCH
Mandatory Intra-day Margin Call in respect of the New Year Holidaypdf
Ref Number: ORM/CRC/352/2025
18
Dec 2025
SEOCH
Risk Management Arrangements in respect of the Christmas Holidays – Reminderpdf
Ref Number: ORM/CRC/349/2025
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