Trading hours & trading rules of Hong Kong stocks

Except for public holidays and the market closure due to weather conditions, the Hong Kong stock market generally trades from Monday to Friday. The trading hours are as follows:

1. Pre-opening Session

Time Period (HKT)Time Period (AEST)Time Period (AEDT)Trading Rules
Order input period: 9:00 AM - 9:15 AMOrder input period: 11:00 AM - 11:15 AMOrder input period: 12:00 PM - 12:15 PMAt-auction orders and at-auction limit orders can be entered, amended or cancelled.
No-cancellation period: 9:15 AM - 9:20 AMNo-cancellation period: 11:15 AM - 11:20 AMNo-cancellation period: 12:15 PM - 12:20 PMOnly at-auction orders and at-auction limit orders can be entered. No orders can be amended or cancelled.
Random matching period: 9:20 AM - 9:22 AM (matching will start randomly at a time   from 9:20 AM to 9:22 AM at the final Indicative Equilibrium Price)Random matching period: 11:20 AM - 11:22 AM (matching will start randomly at a time   from 11:20 AM to 11:22 AM at the final Indicative Equilibrium Price)Random matching period: 12:20 PM - 12:22 PM (matching willing start randomly at a   time from 12:20 PM to 12:22 PM at the final Indicative Equilibrium Price)Orders are matched during this period.
Blocking period: from the end of the random matching period to 9:30 AMBlocking period: from the end of the random matching period to 11:30 AMBlocking period: from the end of the random matching period to 12:30 PMFor at-auction orders: Outstanding orders will be cancelled by the system. For at-auction limit orders: Outstanding orders will be carried forward to the Continuous Trading Session and treated as limit orders provided that the specified price of that at-auction limit order does not deviate 9 times or more from the nominal price.


2. Continuous Trading Hours

Time PeriodHKTAESTAEDT
Morning Session9:30 AM - 12:00 PM11:30 AM - 2:00 PM12:30 PM - 3:00 PM
Extended Morning Session12:00 PM - 1:00 PM2:00 PM - 3:00 PM3:00 PM - 4:00 PM
Afternoon Session1:00 PM - 4:00 PM3:00 PM - 6:00 PM4:00 PM - 7:00 PM

Note: During the Extended Morning Session, orders cannot be amended, but can be cancelled from 12:30 PM to 1:00 PM (HKT).


3. Closing Auction Session

Time Period  (HKT)Time Period  (AEST)Time Period  (AEDT)Trading Rules
Reference Price fixing period: 4:00 PM - 4:01 PMReference Price fixing period: 6:00 PM - 6:01 PMReference Price fixing period: 7:00 PM - 19:01 PMThe Reference Price is calculated and published; orders cannot be entered.
Order input period: 4:01 PM - 4:06 PMOrder input period: 6:01 PM - 6:06 PMOrder input period: 7:01 PM - 7:06 PMAt-auction orders, and at-auction limit orders within the ±5 per cent price limit, can be entered, amended or cancelled.
No-cancellation period: 4:06 PM - 4:08 PMNo-cancellation period: 6:06 PM - 6:08 PMNo-cancellation period: 7:06 PM - 7:08 PMAt-auction orders and at-auction limit orders can be entered, but cannot be amended or cancelled; prices of new at-auction limit orders must be between the lowest ask and highest bid of the order book.
Random closing period: 4:08 PM - 4:10 PMRandom closing period: 6:08 PM - 6:10 PMRandom closing period: 7:08 PM - 7:10 PMAt-auction orders and at-auction limit orders also can be entered, but cannot be amended or cancelled; prices of new at-auction limit orders must be between the lowest ask and highest bid of the order book.