Asx Index Options Trading Hours

Asx index options 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.

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Market phases for the Australian Securities Exchange (ASX)
2. ASX Holidays (Trading Calendar)


Global Market Opening Times

ASX Market Phases


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.

Asx index options trading hours

Letters A-B (e.g. ANZ)

Group 2 – 10:02:15 a.m.

Asx index options trading hours

Letters C-F (e.g. CBA)

Group 3 – 10:04:30 a.m.

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Letters G-M (e.g. GNC).

2019 Trading Calendar

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

Group 5 – 10:09:00 a.m.

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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.

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Group 1 may open at any time between 9:59:45 a.m. and 10:00:15 a.m.

Normal Trading

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

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.

Asx index options trading hours

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”.

ASX Close (Closing Single Price Auction)

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

ASX Market Phases


"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.


Trading has stopped for the day.

Asx index options trading hours

New trades cannot be entered into the system but stockbrokers can change or remove existing orders.

Purge Orders

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

System Maintenance

For administration purposes.


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

2019 Trading Calendar

Public HolidayDateStatesASX TradingChess Settlement
New Year's DayMon 1 JanuaryALLCLOSEDNo Settlement
Australia DayMon 28 JanuaryALLCLOSEDNo Settlement
Good FridayFri 19 AprilALLCLOSEDNo Settlement
Easter MondayMon 22 AprilALLCLOSEDNo Settlement
ANZAC DayThur 25 AprilALLCLOSEDNo Settlement
Queen's BirthdayMon 10 JuneAll except WACLOSEDNo Settlement
Melbourne CupTue 5 NovemberVICOPENNo Settlement
Last Business Day before ChristmasTue 24 DecemberALLOPEN**Settlement
ChristmasWed 25 DecemberALLCLOSEDNo Settlement
Boxing DayThur 26 DecemberALLCLOSEDNo Settlement
Last Business Day of the YearTue 31 DecemberALLOPEN**Settlement

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

Global Exchange Opening Times