Trading Hours

ASX Open Time: Starts at 10am (Sydney)
ASX Close Time: Between 4:10pm and 4:12pm (Sydney)

See the Market Phases below for more details.

You can skip directly to the relevant section:

      1. Market phases for the Australian Securities Exchange (ASX)
      2. ASX Holidays (Trading Calendar)
      3. Global Market Opening Times

ASX Market Phases



7am - 10am


Trades can be entered into the system but no trading takes place. All trades are queued according to their price with priority given to trades entered first.


ASX Open

Opening starts at 10:00 a.m. (Sydney) and lasts for approximately 10 minutes.

Group 1 – 10:00:00 a.m.
Letters A-B (e.g. ANZ)

Group 2 – 10:02:15 a.m.
Letters C-F (e.g. CBA)

Group 3 – 10:04:30 a.m.
Letters G-M (e.g. GNC).

Group 4 – 10:06:45 a.m.
Letters N-R (e.g. NAB)

Group 5 – 10:09:00 a.m.
Letters S-Z (e.g. SEK)

The opening time is randomly generated and occurs up to 15 seconds either side of the times shown above. E.g. Group 1 may open at any time between 9:59:45 a.m. and 10:00:15 a.m.

10am - 4pm

Normal Trading

Orders are placed immediately into the market and transact as soon as volume is available at the specified price level.

4pm - 4:10pm

Pre-CSPA ("Match")

You can place, remove, or amend an order, but no trades actually take place.

Orders (both buy and sell) are ranked according to their price. Who ever bids the highest (for buyers) or offers the lowest (for sellers) is placed at the front of the queue.

Often there is a crossover in the middle (e.g. the lowest seller might offer $1.55 and the highest buyer might bid $1.63).

The area in the middle where they cross over is called the “match”.

4:10pm - 4:12pm

ASX Close (Closing Single Price Auction)

A random time for the close is generated by the ASX between 4:10 - 4:12 p.m. AEST.

"Matching” share prices are weighted to find their mid-point and this becomes the closing price of the share. All trades that take place on the close transact at the same price regardless of what price an investor bids or offers.

4:12pm - 6:50pm


Trading has stopped for the day. New trades cannot be entered into the system but stockbrokers can change or remove existing orders.

6:50pm - 6:59pm

Purge Orders

Orders that are too far from the market or have expired are removed from the market.

6:59pm - 7pm

System Maintenance

For administration purposes.

7pm - 7am


The system is closed. The database is updated with securities being added and removed.

2019 Trading Calendar

Public Holiday Date ASX Trading
New Year's Day Mon 1 January CLOSED
Australia Day Mon 28 January CLOSED
Good Friday Fri 19 April CLOSED
Easter Monday Mon 22 April CLOSED
ANZAC Day Thur 25 April CLOSED
Queen's Birthday Mon 10 June CLOSED
Melbourne Cup Tue 5 November OPEN
Last Business Day before Christmas Tue 24 December OPEN**
Christmas Wed 25 December CLOSED
Boxing Day Thur 26 December CLOSED
Last Business Day of the Year Tue 31 December OPEN**

* Applies to bank employees only
** Market closes at 14:10 Sydney time

Global Exchange Opening Times

Country Exchange Open Close
Australian flag Australia Australian Securities Exchange 10:00 16:12
Brazilian flag Brazil BM&F Bovespa 10:00 17:30
Canadian flag Canada Toronto Stock Exchange 9:30 16:00
Chinese flag China Shanghai Stock Exchange 9:30 15:00
European Union flag Eurozone Euronext 9:00 17:30
german flag Germany Frankfurt Stock Exchange 9:00 17:30
Hong Kong flag Hong Kong Hong Kong Stock Exchange 9:15 16:00
Japanese flag Japan Tokyo Stock Exchange 9:00 15:00
NZ flag New Zealand NZX 10:00 17:00
Russian flag Russia Moscow Exchange 10:00 18:45
Singapore flag Singapore Singapore Exchange 9:00 17:00
South African flag South Africa JSE Limited 9:00 17:00
South Korean flag South Korea Korea Exchange 9:00 15:00
Switzerland flag Switzerland SIX Swiss Exchange 9:00 17:30
UK flag UK London Stock Exchange Group 8:00 16:30
USA flag USA NASDAQ 9:30 16:00
USA flag USA New York Stock Exchange 9:30 16:00