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 Information Services (China) Limited (“HKEX-IS (China)”) by emailing to hkex-is-china@hkex.com.hk.

Y = Applicable

Date	Ref No.	Subject	Securities Market Data	Derivatives Market Data		Issuer News	Stock Connect Market Data
Date	Ref No.	Subject	OMD-C	OMD-D	D-LITE	IIS	OMD-CC
26/04/2024	MDD/24/282_C	Arrangement in HKEX Orion Market Data Platform - Derivatives Market (OMD-D) for the After-Hours Trading on 27 May 2024 Enclosure 1 : Exchange Circular (English)		Y	Y
25/04/2024	MDD/24/293_C	Arrangement upon Issuance of Typhoon, Extreme Conditions, and/or Rainstorm Warning Signal	Y	Y	Y	Y	Y
22/04/2024	MDD/24/287_C	Revised Last Trading Day and Final Settlement Day of MSCI Vietnam (USD) Index Futures April 2024 Contract Enclosure 1 : Exchange Circular (English)		Y	Y
15/04/2024	MDD/24/270_C	Change of Character Format of Derivative Warrants ('DWs'), Callable Bull/Bear Contracts ('CBBCs') and Inline Warrants ('IWs') Stock Short Names Enclosure 1 : Exchange Circular (English)	Y
12/04/2024	MDD/24/233_C	Arrangement of HKEX Orion Market Data Platform - Securities Market (OMD-C) and Mainland Market Data Hub (MMDH) for the Adjustment to Market Data Dissemination in Relation to Northbound Trading under Stock Connect Enclosure 1 : Exchange Circular (English) Enclosure 2 : OMD-C Interface Specifications (version 1.38) Enclosure 3 : OMD-C MMDH Interface Specifications (version 1.37)	Y
10/04/2024	MDD/24/243_C	Final Strike Information for Weibo Corporation Stock Option Contracts after the Contract Adjustment Enclosure 1 : Final strike information for Weibo stock options		Y	Y
27/03/2024	MDD/24/230_C	Updates on Introduction of the 10-year China Ministry of Finance Treasury Bond Futures Enclosure 1 : Exchange Circular (English)		Y	Y
27/03/2024	MDD/24/225_C	Market Data Packages for the Mainland Market	Y	Y	Y	Y	Y
26/03/2024	MDD/24/215_C	Market Data Marketing Programmes for New Derivatives Products - Updates		Y
25/03/2024	MDD/24/218_C	Market Rehearsal for Issuer Information feed Service (IIS) Technical Upgrade				Y
19/03/2024	MDD/24/208_C	Post Release Test for the Launch of Self-Match Prevention Service in Hong Kong Securities Market Enclosure 1 : Exchange Circular (English)	Y
18/03/2024	MDD/24/210_C	Arrangement in OMD-D for the Capital Adjustment of Weibo Corporation Stock Futures & Option Contracts - Special Cash Dividend Enclosure 1 : Exchange Circulars		Y	Y
11/03/2024	MDD/24/175_C	Additional Practice Session for the introduction of Self-Match Prevention Service in Hong Kong Securities Market Enclosure 1 : Exchange Circular (English)	Y
27/02/2024	MDD/24/145_C	Practice Session for the introduction of Self-Match Prevention Service in Hong Kong Securities Market Enclosure 1 : Exchange Circular (English)	Y
27/02/2024	MDD/24/146_C	Post Release Tests and Rollout for Upgrade of SDNET/2 WAN Gateways Enclosure 1 : Test rundown of the Post Release Test 1 Enclosure 2 : Exchange Circulars (English)	Y	Y	Y	Y	Y
23/02/2024	MDD/24/140_C	Updates on the Inclusion of Currency Futures and Options in Derivatives Holiday Trading on 29 March Enclosure 1 : Exchange Circular (English)		Y	Y
22/02/2024	MDD/24/144_C	Final Strike Information for China Resources Land Limited Stock Option Contracts after the Contract Adjustment Enclosure 1 : Final strike information for China Res Land stock		Y	Y
21/02/2024	MDD/24/128_C	Updates on Issuer Information feed Service (IIS) Technical Upgrade - Additional Practice Session and Updated Implementation Schedule				Y
09/02/2024	MDD/24/116_C	Arrangement in HKEX Orion Market Data Platform - Derivatives Market (OMD-D) for the Contract Adjustment to China Resources Land Limited Option Contract - Change in Contract Size Enclosure 1 : Exchange Circular (English)		Y	Y
15/01/2024	MDD/24/044_C	Practice Sessions and Post Release Tests for Upgrade of SDNET/2 WAN Gateways Enclosure 1 : Exchange Circulars (English)	Y	Y	Y	Y	Y
15/01/2024	MDD/24/045_C	Inclusion of Currency Futures and Options in Derivatives Holiday Trading on 29 March 2024 Enclosure 1 : Exchange Circular (English)		Y	Y
12/01/2024	MDD/24/034_C	Updates on Issuer Information feed Service (IIS) Technical Upgrade - Updated Implementation Schedule and IIS Transmission Specification Enclosure 1 : IIS Transmission Specification version 4.3.pdf				Y
11/01/2024	MDD/24/030_C	Revised Last Trading Day and Final Settlement Day of Indian Rupee vs Renminbi (Hong Kong) ('INR/CNH') Futures, MSCI Philippines (USD) Index Futures and TSI Iron Ore Fines 62 percent Fe CFR China Futures Contracts Enclosure 1 : Exchange Circular (English)		Y	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
OMD-CC = Orion Market Data Platform - China Connect (Securities)