Participants are advised that ASX will conduct the first of three Industry Wide Test (IWT) events in the production environment on Saturday 12 April 2025. It is expected that all Trading Participants will join the test.

ASX will conduct three Industry Wide Tests (IWT) in the production environment in preparation for go-live of Service Release 15 (SR15) on the following dates:

• IWT1 – Saturday 12^th April 2025
• IWT2 – Saturday 3^rd May 2025 (ASX BCP Weekend)
• IWT3 – Saturday 10^th May 2025 (Go live readiness)

For each event, the market will run through all session states on a compressed schedule to allow customers to test the functional changes including the new session states, new Trade Report codes and the FIX Drop Copy service (conformed applications only).

To assist customers in testing,

• For the new Opening Single Price Auction (OSPA) for cash markets, ASX will simulate load in securities AMC, ANZ, BHP, BXB, CBA, CSL, FMG, MQG, NAB, NEM, RIO, RMD, SQ2, STO, TCL, TLS, WBC, WDS, WES and WOW.
• For the Late closing auctions in the Post Close session state, ASX will resume the following securities from Pre-NR between 11.11 and 11.40am – ANN, GPT, LNW, and TWE.
• From 10:00am onwards the following securities will move into Trading Halt or Suspend for approximately 1 hour. Trading Halt will apply to ABE, CNJ, JMS, PFE, TML and ZZG. Suspend will apply to WFL.
  

ASX requests that all Participants will take part in the IWT events. Vendors and AMOs will also be strongly encouraged to participate.

Participants will be required to attest, they can successfully connect and process the new functionality available in SR15.

The test period IWT 1 will be from 08:30 to 12:30 AEST.

What do I need to do by when?

Registration and Declaration

• Registrations for all IWT events should be completed via the attached Appendix 1 - customer registration form and returned to ASX Customer Technical Support (CTS).
• Registrations for IWT 1 should be returned by close of business by Friday 4 April 2025 to confirm participation in the test. Registrations for IWT 1 received after this date will not be accepted.
• Participants need to specify ASX Net and ALC gateway connectivity details that will be used in the test, other access points will be disabled by ASX.
• Participants must liaise with their vendors prior to the test to ensure readiness.

Test Availability and Conditions for IWT 1

• During the IWT the ASX TradeMatch and ASX Centrepoint order books will be opened for transactional activity.
• Good to Cancel/Good to Date orders in the system on Friday 11 April 2025 will be restored in ASX Trade on Saturday 12 April.
• ASX will cancel any existing Undisclosed and Iceberg orders prior to market open.
• The test is limited to ASX Trade connections for order entry and execution and the new FIX drop copy service; there will be no access provided to CHESS or Signal B.
• Participants not joining the test should ensure their production sessions remain disconnected post the ASX Trade system shutdown at 20:30 AEST on Friday 11 April 2025, until the conclusion of testing on Saturday. The system rollback will be completed ready for a normal open on Monday 14 April 2025.
• The trading date for transactions performed during the test will be Saturday 12 April 2025.
• User configuration changes made during the test, including password changes, will be rolled back at the end of the test and will not be available in production on Monday 14 April 2025.
• Transactions performed on Saturday 12 April will not be available on ASX Trade on Monday 14 April. Participants and vendors should remove 12 April transactions from their applications on completion of the test.
• Participants will be able to connect to the production environment from 8.30am on Saturday 12 April

Testing Schedule – Cash Market

EQUITY MARKET GROUPS 1-5
INTEREST RATE MARKET
STOCK INDICES
LISTED FUNDS WARRANTS & ST PRODS

* Please see Appendix 2 for full Product Schedule.

Test Confirmation

On completion of the IWT test, Participants must email CTS their test status, advising of either a successful completion or a list of outstanding issues.

Confirmations can be sent as soon as markets move to ADJUST and Participants have completed testing, no later than 13:00 AEST.

Participants are required to submit an Attestation Form – Appendix 3 to Customer Technical Support (CTS) by 2pm 10 May 2025.

Issued by

Andrew Walton - General Manager, Trading Services

Contact information

Customer Technical Support
cts@asx.com.au | 1800 663 053 | +612 9227 0372
www.asx.com/contact

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