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Over the past three years, the ASX has faced significant technical challenges, primarily centered around the ambitious CHESS replacement project and more recently, operational incidents affecting its existing trading and settlement systems. These challenges have had implications for its competitive standing.
Here’s a breakdown:
Key Technical Challenges:
* CHESS Replacement Project Failure (2022-2023):
* The ASX embarked on a project in 2017 to replace its aging Clearing House Electronic Subregister System (CHESS) with a distributed ledger technology (DLT) based platform.
* This project faced numerous governance, technical, and project management issues.
* There were issues with inadequate planning, poorly documented requirements, lack of effective supervision, and a failure to clearly define the project’s core objectives.
* The project experienced repeated delays and ultimately, in November 2022, the ASX announced it would not proceed with the DLT-based replacement after significant investment and years of work.
* In 2023, the ASX appointed Tata Consultancy Services (TCS) to deliver a new CHESS replacement using their TCS BaNCS Market Infrastructure product, with a phased implementation planned. Release 1 (clearing services) is now targeted for March or April 2026, and Release 2 (settlement and subregister) is targeted for 2029.
* Operational Incidents and Outages:
* November 2020 Outage: A significant outage occurred shortly after a major upgrade to the ASX’s equity trading platform, ASX Trade. An independent expert review identified shortcomings in the project’s readiness for go-live, risk and issue management, and testing.
* December 2024 Settlement Disruption: A “technical issue” on the CHESS Batch Settlement caused disruption and delays to several days of trade settlements. The ASX admitted that its CHESS technology teams were “stretched” in the event of such multi-day incidents and is planning to expand capacity. ASIC has also commenced an investigation into this incident.
Impact on Competitive Standing:
These technical challenges have had several effects on the ASX’s competitive standing:
* Damage to Reputation and Trust: The failure of the initial CHESS replacement project and the more recent operational incidents have damaged the ASX’s reputation as a reliable and technologically sound market operator. This has led to criticism from regulators (RBA and ASIC) and market participants, raising concerns about the trustworthiness of Australia’s stock exchange. The repeated issues can erode confidence among investors and market players.
* Increased Regulatory Scrutiny: The technical problems have led to increased scrutiny and intervention from regulatory bodies. ASIC has been more active in overseeing the ASX, including launching investigations and expressing “deep disappointment” over the CHESS replacement saga. This increased regulatory pressure can impact the ASX’s operational flexibility and potentially lead to additional compliance costs.
* Delayed Modernization: The setbacks in the CHESS replacement have delayed the modernization of Australia’s post-trade infrastructure. While the ASX is now pursuing a new path, the years lost could put Australia behind other markets that have successfully upgraded their core systems. A modern and efficient post-trade system is crucial for attracting and retaining market participants.
* Potential Opening for Competitors (Future): While the ASX currently has a strong hold on post-trade services, the technical challenges and regulatory focus could create opportunities for future competition, particularly if regulatory reforms encourage new entrants in clearing and settlement. The need for a stable and reliable infrastructure might make market participants more open to considering alternatives if they emerge.
* Impact on Listings: While not solely due to technical issues, reports indicate a decline in the number of new listings on the ASX and an increase in delistings. While various factors contribute to this, concerns about the efficiency and reliability of the market infrastructure could be a contributing factor in the long term.
* Resource Diversion: The significant resources (financial and human) dedicated to the CHESS replacement project, especially the failed DLT attempt, have likely diverted attention and investment from other potential technological upgrades or strategic initiatives that could have enhanced the ASX’s competitive position in other areas.
In conclusion, the technical challenges faced by the ASX over the past three years, particularly the CHESS replacement debacle and operational incidents, have negatively impacted its reputation, increased regulatory scrutiny, delayed critical infrastructure modernization, and potentially opened the door for future competition. Addressing these issues and successfully delivering a stable and modern CHESS system will be crucial for the ASX to maintain and strengthen its competitive standing in the long term.

Video courtesy of ABN-AMRO

Video courtesy of ABN-AMRO