HK Market & A-Share - Trading Rules

Trading Hours

Trading in the Hong Kong Exchange operates from Monday to Friday (except on Saturday, Sunday and Public Holidays) during the following hours:

HK - Securities, Stock Futures and Stock Options markets
Pre-opening session 09:00 - 09:30
Morning session 09:30 - 12:00
Afternoon session 13:00 - 16:00
Closing Auction Session 16:00 to a random closing between 16:08 and 16:10

*There is no Extended Morning Session and Afternoon Session on the eves of Christmas, New Year and Lunar New Year.

HK - Index Futures and Index Options markets
Pre-opening period session* 08:45 - 09:15
Morning session 09:15 - 12:00
Pre-market opening session* 12:30 - 13:00
Afternoon session 13:00 - 16:30
After-hours trading session 17:15 - 03:00*

*Only applies to Hang Seng Index, Mini-Hang Seng Index and H-shares Index Futures.


  • Closing time of Stock Index Futures and Options, Dividend Futures, HSI Volatility Index Futures and BRICS Futures for half-day trading will be 12:30p.m. Closing time of Stock Futures and Stock Options for half-day trading will be 12:00 noon.
  • For Flexible Index Options on Hang Seng Index and Hang Seng China Enterprises Index, the acceptance for series creation is from market open until 30 minutes before market close of Index Options. No request for series creation will be accepted on the expiry day of the contract.
Stock Connect (Northbound)
  SSE/SZSE Trading Hours Time for EPs to input Northbound orders(1)
Opening Call Auction 09:15 - 09:25
09:10 - 11:30
Continuous Auction (Morning) 09:30 - 11:30
Continuous Auction (Afternoon) 13:00 - 14:57
12:55 - 15:00
Closing Call Auction 14:57 - 15:00

Note (1):

Time Period Remarks
09:20 - 09:25 SSE/SZSE will not accept order cancellation.
14:57 - 15:00 SSE/SZSE will not accept order cancellation.
09:10 - 09:15;
09:25 - 09:30;
12:55 - 13:00
Orders and order cancellations can be accepted by SEHK but will not be processed by SSE/SZSE until SSE’s and SZSE's market open.

Orders that are not executed during the opening call auction session will automatically enter the continuous auction session.

Items Description
Maximum trading size HK Shares: 3,000 lots per order for trading
A-Share: 1 million shares for trading
Bid sizes (HK stocks) Share prices for an order of up to 20 bids from the last done price.
Short-sell order Not available.
Clients account must have valid stock holdings before they can sell. UTRADE Online Trading Platform does not allow clients to short sell.
Order not done by the end of trading day Clients' orders will automatically lapse when they are not executed by the end of the trading day and will have an 'expired' status. Clients will need to re-enter the order if they want to place it for the next trading day.
Order for the next trading day when the market is closed Order received after 16:15p.m. will be sent to HKEX when the market opens on the next trading day.
Revise trading limit Clients' orders will be rejected if there is an insufficient trading limit. Please contact your account executive to revise the trading limit.
Order Amendment & Cancellation Policy

For UTRADE Web, when the amendment of the order is lower than the number of shares, clients will not lose their position in the queue. If the order is larger than the number of shares, clients will lose their position in the queue and is required to re-queue again.

It is possible for HKEX to cancel or void any executed orders whenever necessary in accordance with the relevant rules and regulations. It is recommended to read the terms and conditions, and the rules and regulations from HKEX before trading. In addition, please pay attention to the announcements made by HKEX.

Severe Weather Arrangements

Please refer to the HKEX website.

Stock Connect Trading Hour, Trading and Settlement Calendar

Please refer to the HKEX website.