ASX Limited is the operator of Australia's primary financial market, running the full stack an exchange group provides: listing services for companies raising capital, the equities and derivatives trading venues themselves (ASX Trade for cash equities, ASX Trade24 for derivatives and extended-hours futures), and the post-trade layer of clearing and settlement through ASX Clear, ASX Clear (Futures), ASX Settlement and Austraclear. It organises its business into four divisions: Listings, Markets, Technology & Data, and Securities & Payments, and beyond running the market it also writes and enforces the listing rules that around 1,800 listed companies and several hundred ETFs operate under. ASX's differentiator versus other exchange groups is that it is a vertically integrated monopoly infrastructure provider for its home market: it is simultaneously the primary listing venue, the dominant trading market, and, through CHESS, the sole clearing and settlement system and share registry infrastructure for Australian equities, a combination most peer markets split across separate, competing entities. Its derivatives franchise, inherited from the 2006 merger with the Sydney Futures Exchange, gives it a strong position in interest rate products (bank bill futures, 3 and 10 year Commonwealth Government Bond futures) alongside equity index and single stock derivatives, plus an energy futures and options business covering more than 80 contracts for the Australian and New Zealand markets. ASX Limited was formed on 1 April 1987 when Australia's six state-based stock exchanges were amalgamated under one national body, and in October 1998 it became the world's first exchange to demutualise and list its own shares on its own market, trading under the ticker ASX. It is regulated in a split model: ASIC supervises real time trading conduct and listing rule compliance, while the Reserve Bank of Australia oversees the systemic-risk dimension of its clearing and settlement operations. As of July 2026, ASX Limited itself carried a market capitalisation of roughly A$10.6 billion. The company has spent years working to replace its ageing CHESS settlement system; an earlier distributed ledger based rebuild was scrapped in 2022 after major cost overruns, and the reset programme reached a significant milestone in 2026 when CHESS Release 1, covering clearing, went live in April 2026, with the group confirming completion of all planned Release 1 operational milestones by May 2026 and moving into a second hypercare phase; Release 2, covering settlement and registry functions, is targeted for 2029. ASX is mid-transition at the leadership level: Managing Director and CEO Helen Lofthouse, who had been credited with halting and resetting the original CHESS rebuild, stepped down on 29 May 2026 after roughly three years in the role, with Darren Yip serving as interim CEO. On 14 May 2026 the ASX board announced Anthony Attia, most recently Global Head of Derivatives and Post Trade at Euronext and previously CEO of Euronext Paris, with earlier senior roles at Intercontinental Exchange and NYSE Euronext spanning close to three decades of exchange industry experience, as the incoming Managing Director and CEO, due to start on 1 September 2026 subject to Australian work authorisation.
