ASX participant identifiers – are you set up correctly?

Changes to how participant identifiers are recorded by the ASX took effect from 27 September 2025. These will improve the accuracy of de-anonymised trading data provided to the Electricity Authority under clause 13.236AA of the Electricity Industry Participation Code 2010 (Code).

As communicated in June, these changes are part of the Authority’s ongoing efforts to enhance transparency in the hedge market and support our statutory functions of monitoring, enforcement, and market facilitation.

What’s changing?

The ASX has updated its systems so that participant identifiers can now be correctly read even when they are embedded within a longer string in the relevant field. Previously, participants needed to ensure that only the identifier appeared in the field, without any additional characters or text. This change should reduce the risk of missing or unrecognised identifiers in the data provided to the Authority.

What we expect from participants

Participants who trade New Zealand electricity futures on the ASX must ensure that appropriate arrangements are in place with brokers or other service providers to facilitate the provision of all required information to the Authority, as required under clause 13.236AA.

Please make sure that:

• You have specified your identifier(s) to the ASX as part of your consent to share information. Should you need to add an identifier, please contact commodities@asx.com.au with your identifier.
• This identifier needs to be in the trading terminal fields of Account or TextA. TextA can now be a “wildcard match” - ie, the identifier can be within the string in this field.
• You must instruct any agents as per clause 13.236AA(3) of the Code, including any executing brokers with the above details.

The Authority will continue to monitor the quality of exchange data received and may follow up with participants where issues persist.

We appreciate your cooperation in helping us to monitor the hedge market.