Australia’s financial markets watchdog, the Australian Securities and Investments Commission (ASIC), has launched a formal investigation into the Australian Securities Exchange (ASX) following a series of “serious and repeated” failures linked to the botched replacement of its core settlement system, CHESS.

A high-profile three-member panel—led by Rob Whitfield, former senior executive at Westpac and current board director at the Commonwealth Bank and Transurban—has been appointed to lead the inquiry. Joining him are Christine Holman, a seasoned non-executive director, and Guy Debelle, former Deputy Governor of the Reserve Bank of Australia (RBA). The panel will deliver its final recommendations by March 31, 2026.

“This review will scrutinize governance, management practices, and the ASX’s capacity to operate critical market infrastructure in a way that promotes trust and stability,” ASIC Chair Joe Longo said in a statement.

Background: A Costly Blockchain Failure

The investigation follows ASX’s failed seven-year attempt to modernize the Clearing House Electronic Subregister System (CHESS)—its aging clearing and settlement platform—using a distributed ledger technology (DLT) system in partnership with U.S.-based Digital Asset.

Initially touted as a world-first for financial markets infrastructure, the blockchain-based system suffered repeated delays, budget blowouts, and technical complications. In 2022, the project was ultimately scrapped after more than A$250 million was spent. A subsequent review by Accenture found significant flaws in project governance and delivery capabilities.

ASX has since partnered with India’s Tata Consultancy Services (TCS) to rebuild CHESS using conventional technology, with rollout targeted for early 2026.

Recent System Failures Reignite Scrutiny

While ASX’s blockchain misadventure had already sparked criticism, the situation escalated when the current CHESS system suffered a major outage in December 2024, disrupting trade settlement processes and rattling investor confidence.

These technical failures—and ASX’s lack of timely transparency about their severity—prompted ASIC to not only investigate the operational breakdowns but also to consider broader structural issues within the exchange's governance and risk frameworks.

“We’re concerned that cultural and systemic weaknesses are impairing the ASX’s ability to operate critical infrastructure reliably,” Longo added.

Mandate and Implications of the Inquiry

The review panel has been tasked with examining:

• Governance and accountability structures

• Technology oversight and delivery capabilities

• Operational resilience of ASX’s systems

• Effectiveness of risk management frameworks

Depending on the outcome, ASIC may recommend reforms including:

• Stronger board-level oversight of technology

• Unbundling of the clearing house from ASX’s broader operations

• Enhanced reporting obligations or licensing conditions

Sources close to the investigation suggest a clearing house separation is “firmly on the table” if ASX is found structurally incapable of fulfilling its central market role independently (The Australian).

Market Reaction and Broader Consequences

Following the announcement of the probe, ASX shares slid approximately 6.8% on the Australian Securities Exchange, reflecting investor anxiety over potential sanctions and structural changes.

The move also marks a turning point in regulatory oversight of financial market infrastructure in Australia. Until now, the ASX has largely operated as a vertically integrated monopoly with minimal external interference. That era may be ending.

“This is not just a technological reckoning, but a regulatory one,” said Fiona Clark, a financial services analyst at Evans & Partners. “The ASX is now under serious pressure to prove it can evolve—or risk being reshaped.”

Next Steps

The panel is expected to consult widely with market participants, regulators, and technology experts. Interim findings may be published in late 2025, with the final report due by March 2026.

Meanwhile, ASIC is also pursuing legal action against ASX Ltd. for allegedly making misleading disclosures to the market during the blockchain CHESS project—an indication the regulator is prepared to pursue both systemic and individual accountability (Reuters).

The inquiry into the ASX represents one of the most significant regulatory interventions in Australian market infrastructure in decades. Whether it results in operational reform, structural separation, or enhanced oversight, one thing is clear: business as usual at the ASX is no longer an option.