Client Notices
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The client notices have been distributed with all enclosures by e-mail to related Clients. For enquiry please contact HKEX-IS by emailing to hkex-is@hkex.com.hk

Y = Applicable

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Date Ref No. Subject Securities Market Data Derivatives Market Data Issuer News Stock Connect Market Data
OMD-C OMD-D D-LITE IIS OMD-CC
28/06/2022 MDD/22/420 Fixed Fee Programme for Southbound Brokers - Update

Y

28/06/2022 MDD/22/419 Launch of the Inclusion of ETFs in Stock Connect
Enclosure 1 : Participant Circular (English)

Y

27/06/2022 MDD/22/410 Introduction of News Subtypes to Headline Message in Issuer Information feed Service ('IIS')
Enclosure 1 : IIS Transmission Spec v3.16
Enclosure 2 : IIS Transmission Spec (News Headline) v2.13

Y

16/06/2022 MDD/22/383 Final strike information for Ganfeng Lithium Co., Ltd. Stock Options Contracts after the Capital Adjustment
Enclosure 1 : Final strike information for Ganfeng Stock Options

Y

Y

13/06/2022 MDD/22/375 Updated Arrangement in HKEX Orion Market Data Platform - Derivatives Market (OMD-D) for the Capital Adjustment of Ganfeng Lithium Co., Ltd. Stock Futures and Options Contracts - Bonus Shares
Enclosure 1 : Participant Circular (English)

Y

Y

08/06/2022 MDD/22/364 Final strike information for CNOOC Limited Stock Options Contracts after the Capital Adjustment
Enclosure 1 : Final strike information

Y

Y

07/06/2022 MDD/22/360 Arrangement in HKEX Orion Market Data Platform - Derivatives Market (OMD-D) for the Capital Adjustment of Yankuang Energy Group Co. Ltd. Stock Futures and Options Contracts - Special Dividend
Enclosure 1 : Participant Circular (English)

Y

Y

07/06/2022 MDD/22/359 Launch Date for Introduction of Additional Contract Months for Hang Seng Index and Hang Seng China Enterprises Index Futures
Enclosure 1 : Participant Circular (English)

Y

Y

01/06/2022 MDD/22/346 Inclusion of Exchange-Traded Funds (ETFs) in Stock Connect - Practice Sessions, Readiness Declaration and Updated Arrangement of End-to-End Testing Session for HKEX Orion Market Data Platform China Connect (Securities) (OMD-CC)
Enclosure 1 : Participant Circulars (English)

Y

01/06/2022 MDD/22/344 Discontinuation of TR/HKEX RXY Index Information (for Application Service Providers)

Y

Y

Y

01/06/2022 MDD/22/343 Discontinuation of TR/HKEX RXY Index Information (for End-Users)

Y

Y

Y

01/06/2022 MDD/22/342 Discontinuation of TR/HKEX RXY Index Information (for Vendors)

Y

Y

Y

30/05/2022 MDD/22/337 Discontinuation of TR/HKEX RXY Indices Dissemination in OMD Index Datafeed
Enclosure 1 : OMD-C Interface Specifications (version 1.34c)
Enclosure 2 : OMD-C MMDH Interface Specifications (version 1.33c

Y

Y

Y

18/05/2022 MDD/22/326 Final strike information for JD.com, Inc. Stock Options Contracts after the Capital Adjustment
Enclosure 1 : Final strike information

Y

Y

12/05/2022 MDD/22/301 Arrangement in HKEX Orion Market Data Platform - Derivatives Market (OMD-D) for the Capital Adjustment of Ganfeng Lithium Co., Ltd. Stock Futures and Options Contracts - Bonus Shares
Enclosure 1 : Participant Circulars (English)

Y

Y

12/05/2022 MDD/22/309 Arrangement upon Issuance of Typhoon, Extreme Conditions, and/or Rainstorm Warning Signal

Y

Y

Y

Y

Y

06/05/2022 MDD/22/292 Arrangement in HKEX Orion Market Data Platform - Derivatives Market (OMD-D) for the Capital Adjustment of JD.com, Inc. Stock Futures and Options Contracts - Special Cash Dividend
Enclosure 1 : Participant Circular (English)

Y

Y

04/05/2022 MDD/22/284 Arrangement in HKEX Orion Market Data Platform - Derivatives Market (OMD-D) for the Capital Adjustment of CNOOC Limited Stock Futures and Options Contracts - Special Dividend
Enclosure 1 : Participant Circular (English)

Y

Y

28/04/2022 MDD/22/269 Arrangement in HKEX Orion Market Data Platform - Derivatives Market (OMD-D) for Introduction of Additional Contract Months for Hang Seng Index and Hang Seng China Enterprises Index Futures
Enclosure 1 : Participant Circular (English)

Y

Y

22/04/2022 MDD/22/265 Arrangement of HKEX Orion Market Data Platform China Connect (Securities) (OMD-CC) for Inclusion of Exchange-Traded Funds (ETFs) in Stock Connect
Enclosure 1 : OMD-CC Interface Specification (verson 1.4)
Enclosure 2 : Participant circular

Y

21/04/2022 MDD/22/264 1) Updates on Increase Time Precision of Trade Time Field in HKEX Orion Market Data Platform - Securities Market (OMD-C) and Mainland Market Data Hub (MMDH) and; 2) Support of End-to-End (E2E) Testing for Hong Kong Investor Identification Regime (HKIDR)
Enclosure 1 : Participant circular

Y

20/04/2022 MDD/22/253 Implementation of Compression Mechanism on HKEX Orion Market Data Platform - Derivatives Market (OMD-D) D-Lite Datafeed
Enclosure 1 : OMD-D Interface Specification (version 1.41)
Enclosure 2 : OMD-D Developers Guide (version 1.25)

Y

Y

08/04/2022 MDD/22/237 Updated 2022 Operation Calendar for Market Data Systems in Hong Kong Holidays
Enclosure 1 : Updated 2022 Market Data System Operation Calendar

Y

Y

Y

Y

Y

07/04/2022 MDD/22/235 Updated on the Implementation of Derivatives Holiday Trading on 9 May 2022
Enclosure 1 : Participant Circular (English)

Y

Y

30/03/2022 MDD/22/195 New Mobile Market Data Service - Update

Y

Y

Y

Y

25/03/2022 MDD/22/176 Effective Day of Discontinuation of Provisioning Certain Types of Free-Text of Stock in HKEX Orion Market Data Platform - Securities Market (OMD-C) and Mainland Market Data Hub (MMDH)
Enclosure 1 : Participant Circulars (English)

Y

11/03/2022 MDD/22/156 Arrangement in HKEX Orion Market Data Platform - Derivatives Market (OMD-D) for the Implementation of Derivatives Holiday Trading on 9 May 2022
Enclosure 1 : Participant Circular (English)

Y

Y

01/03/2022 MDD/22/130 Revision on the Capital Adjustment Method for Stock Futures and Stock Options in Relation to Spin-offs
Enclosure 1 : Participant Circulars (English)

Y

Y

28/01/2022 MDD/22/074 Introduction of HSI ESG Enhanced Index in HKEX Orion Market Data Platform (OMD) Index Datafeed
Enclosure 1 : OMD-C Interface Specifications (version 1.34b)
Enclosure 2 : OMD-C MMDH Interface Specifications (version 1.33b

Y

Y

Y

25/01/2022 MDD/22/062 Final strike information for CITIC Securities Company Limited Stock Options Contracts after the Capital Adjustment
Enclosure 1 : Final strike information

Y

Y

19/01/2022 MDD/22/049 Final strike information for Tencent Holdings Ltd. Stock Options Contracts after the Capital Adjustment
Enclosure 1 : Final strike information for Tencent Stock Options

Y

Y

17/01/2022 MDD/22/039 Arrangement in HKEX Orion Market Data Platform - Derivatives Market (OMD-D) for the Capital Adjustment of CITIC Securities Company Limited Stock Futures and Options Contracts - Rights Issue
Enclosure 1 : Participant Circulars (English)

Y

Y

14/01/2022 MDD/22/036 Briefing Sessions for Derivatives Holiday Trading
Enclosure 1 : Participant Circulars (English)

Y

Y

14/01/2022 MDD/22/034 Practice Session for Special Purpose Acquisition Companies (SPACs)
Enclosure 1 : Participant Circular
Enclosure 2 : Test Rundown of the Practice Session
Enclosure 3 : Stock Code Allocation Plan

Y

07/01/2022 MDD/22/017 Arrangement of OMD-C and MMDH for SPAC Shares and Warrants
Enclosure 1 : OMD-C Interface Specification v1.34a
Enclosure 2 : OMD-C MMDH Interface Specification v1.33a

Y

07/01/2022 MDD/22/018 Addition of New Headline Categories in Issuer Information feed Service ('IIS')
Enclosure 1 : IIS Transmission Specification v3.15
Enclosure 2 : IIS Transmission Specification(News Headline)v2.12

Y

07/01/2022 MDD/22/019 Final Strike Information for Six New Stock Options Contracts Available for Trading on 10 January 2022
Enclosure 1 : Final strike information for six new stock options

Y

Y

06/01/2022 MDD/22/016 Arrangement of HKEX Orion Market Data Platform - Derivatives Market (OMD-D) for the Implementation of Derivatives Holiday Trading for MSCI Futures and Options
Enclosure 1 : Participant Circulars (English)
Enclosure 2 : OMD-D Interface Specification (v1.40)
Enclosure 3 : List of all MSCI Futures and Options

Y

Y

04/01/2022 MDD/22/004 Update on Headline Category in Issuer Information feed Service ('IIS') Effective from 17 January 2022
Enclosure 1 : IIS Transmission Specification v3.14
Enclosure 2 : IIS Transmission Specification(News Headline)v2.11

Y

OMD-C = Orion Market Data Platform - Securities Market
OMD-D = Orion Market Data Platform - Derivatives Market
D-LITE = Derivatives Lite Datafeed
IIS = Issuer Information feed Service