Less than a month into the job, new ASX chief executive Anthony Attia is moving quickly to reshape the exchange's leadership team. The changes come as the company works to replace its decades-old clearing and settlement system, CHESS, and to rebuild trust after a series of trading outages that frustrated investors and brokers alike.
Who's in and who's out
The reshuffle touches several senior roles. Keir Barnes, a former executive at property developer Dexus, has been appointed as the ASX's next chief financial officer. Mark Peterson, who previously led the New Zealand Exchange, will take on a newly created role as managing director of clearing and settlements. Meanwhile, Elaine Vaisanen has been named chief operating officer, replacing Diona Rae, who is leaving the company.
These appointments signal that Attia is not wasting time. For a company that has faced intense scrutiny over its technology projects and operational reliability, putting new people in key positions is a clear attempt to change direction.
The CHESS problem
The most pressing issue on the new CEO's plate is CHESS, the system that handles the clearing and settlement of trades on the Australian Securities Exchange. CHESS has been running for about three decades, and the ASX has been trying to replace it for years. A previous attempt to build a new system using blockchain technology was abandoned in 2022 after significant delays and cost overruns, and the exchange now faces a shareholder court bid related to that failed project.
The current CHESS system still works, but it is old and increasingly difficult to maintain. Replacing it is a massive undertaking that touches every part of the Australian equity market. Any misstep could disrupt trading for millions of investors, so the pressure on Attia and his new team is considerable.
Outages and trust
Beyond the CHESS rebuild, the ASX has been dealing with a string of trading outages that have interrupted market activity. These outages have not only frustrated traders but have also raised questions about the reliability of the exchange's infrastructure. For everyday investors, an outage can mean delayed orders, missed trades, or simply the inability to access their accounts at critical moments.
Restoring confidence in the market's plumbing is essential. The ASX is the central hub for Australian equities, and when it stumbles, the effects ripple through the entire financial system. Attia's leadership changes are partly aimed at addressing these operational weaknesses and ensuring that the exchange can run smoothly while the CHESS replacement is underway.
What it means for investors
For ordinary investors, these changes are mostly behind the scenes, but they matter. A well-functioning exchange is the foundation of a healthy stock market. If the ASX can successfully replace CHESS and reduce outages, trading should become more reliable and efficient. That benefits everyone who buys or sells shares.
However, big technology overhauls are risky. They can face delays, cost overruns, and unexpected technical problems. Investors should watch how the ASX communicates progress on the CHESS replacement and whether the new leadership team can deliver on its promises. The company's reputation and, ultimately, its share price could hinge on the success of this project.
The reshuffle also signals that Attia is willing to make tough decisions early. Bringing in fresh perspectives from outside the exchange, such as Barnes from Dexus and Peterson from the NZX, suggests a desire to break with the past and adopt new approaches. Whether that translates into smoother operations remains to be seen, but the direction is clear.
The bigger picture
The ASX is not alone in facing technology challenges. Exchanges around the world are modernising their systems to handle faster trading, more data, and greater demands from investors. The Australian market is relatively small compared to the US or Europe, but it is still a vital part of the global financial system. Getting CHESS right is not just about fixing an old system; it's about ensuring the ASX remains competitive and reliable for years to come.
For now, investors should take comfort in the fact that the ASX is actively addressing its problems. Leadership changes are often the first step in a turnaround, and Attia's swift action suggests he understands the urgency. The next few months will be critical as the new team settles in and the CHESS project moves forward.
As always, it's wise to keep an eye on any announcements from the ASX about its technology roadmap and operational performance. These updates will give clues about whether the exchange is on track to deliver the modern, dependable infrastructure that investors expect.
