Operations

Holiday Notice

While HKEX’s Hong Kong markets will be closed on 19 June, all MSCI and currency products in the derivatives market will be available for trading. The Hong Kong markets will re-open as usual on 22 June. Please visit the HKEX Calendar for detailed trading arrangements and visit the Derivatives Holiday Trading page for a list of Holiday Trading Products.

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Operations

Updated 16 Sep 2017

Trading Device

Forms	Reference	Submission Channels
		Email	Client Connect	eService ID
Application for Orion Central Gateway - Securities Market (OCG-C) Session (For BSS Users)	Explanatory Notes 1 Explanatory Notes 2			CT001 CT031
Application for New/ Change of Particulars of Drop-Copy Session (For BSS Users)	Explanatory Notes			CT002
Application for Cancel on Disconnect Service of Orion Central Gateway - Securities Market (OCG-C) Session (For BSS Users)				CT003
Application for Kill Switch Session (For BSS Users)	Explanatory Notes			CT032
Requisition Form for Change of Broker Supplied System (BSS) Connection Information for Orion Central Gateway - Securities Market (OCG-C) / Drop-Copy Session	Explanatory Notes			CT029
Confirmation Form for Rollout/ Termination/ Re-assignment under Orion Central Gateway – Securities Market (OCG-C) and/ or Drop-Copy Session				CT033
Confirmation Form for Change of Broker Supplied System (BSS) under Orion Central Gateway - Securities Market (OCG-C) and/ or Drop-Copy Session				CT016
Orion Trading Platform - Securities Market (OTP-C)/ China Stock Connect (CSC) Trading Device and Broker Supplied System (BSS) Co-ordinator Contact Update				CB028
Comp ID Password of Orion Central Gateway – Securities Market (OCG-C)/ Drop-Copy Session Reset Form				CT034
Request Form for Activation of Broker Number(s) being Suspended by Kill Switch Request				CT038
Requisition Form of Reset OCG-C Message Sequence Number

Updated 30 Mar 2026

Throttle Rate

Forms	Reference	Submission Channels		eService ID
Forms	Reference	Email	Client Connect	eService ID
Application for Increase of Orion Central Gateway - Securities Market (OCG-C) Throttle Rate	Explanatory Notes			CT004
Application for Subscription or Termination of Monthly Throttle Rates	Explanatory Notes			CT005
Application for Throttle-On-Demand (TOD) Throttle Rates	Explanatory Notes			CT006

Testing

Forms	Reference	Submission Channels		eService ID
Forms	Reference	Email	Client Connect	eService ID
Broker Supplied System (BSS) Change Notification	Explanatory Notes			CB011
Notification of Testing Line	Explanatory Notes			CB012
Weekday Testing Booking Form				CT013
Weekend Testing Booking Form				CT014
Application for Exemption from Conducting Rollout Test				CB017
OTP-C End-to-End Test Portal Application Form

Others

Forms	Reference	Submission Channels			Form #/ eService ID
Forms	Reference	Email	Client Connect	ECP	Form #/ eService ID
Confirmation of Orion Trading Platform - Securities Market (OTP-C) Order Consideration Limit Setting					CT027
Request for Broker Activity / Transaction Report					CT036
Reporting of Trading Discrepancy / Error (Other Than Reporting of Short Selling Input Error)
Reporting of Short Selling Input Error
Request for Re-Open Submission of Form SD-4 / SD-6 / SD6A and DCMMAF
Designated Emergency Contact Person for Cash Market Contingencies
Application for the Use and Maintenance of Self-Match Prevention (SMP) ID	Explanatory Notes
Application for the Use of Existing Self-Match Prevention (SMP) ID	Explanatory Notes
Self-Match Prevention (SMP) ID Information Update	Explanatory Notes
Application Form for (1) the appointment / termination of a GCP for the clearing and settlement of Clearing Agency Transactions; and (2) the designation / removal of designation of the set(s) of broker numbers to be attached to Exchange Trades to be cleared and settled by a GCP (Applicable to the Appointment / Termination of Multiple Clearers)					Form 23

Updated 04 May 2026