Understand any stock in simple English
Enter a ticker to learn what the company does and how it makes money.
ASX runs Australia's main stock exchange and the plumbing behind it, charging fees when companies list and when investors trade.
ASX Limited is the company that runs the Australian Securities Exchange — the main marketplace where Australians buy and sell shares, and where big companies go to raise money by selling pieces of themselves to the public. If you own a share of BHP or a stake in an index fund, odds are good it changed hands on ASX's systems.
The business earns money in two main ways. First, it charges companies to list on the exchange and keeps charging them annual fees to stay there. Second, it takes a small fee on trades, clearing, and settlement — so every time someone buys or sells shares, ASX gets a sliver. It also sells market data and provides the computer systems that sit underneath the whole market. When trading is heavy, the fees pile up; when markets are quiet, they don't. Here's the tricky part: ASX is a near-monopoly, and it's also the referee of its own game. It runs the market, clears the trades, and settles them, so would-be rivals have struggled to break in. That dominance makes the business remarkably steady and profitable, but it also makes it a target for regulators who worry about what happens if its technology fails. That worry turned real in 2020, when a software upgrade went badly wrong and shut the entire market down for a full day — an embarrassing black eye for a company whose product is trust.
The bigger recent drama is a massive project to replace its aging trading and settlement systems. ASX spent years and a reported A$250 million-plus on a blockchain-based overhaul, only to shelve it in 2022 and admit the plan was too complex. It's now rebuilding with a more conventional approach, and regulators are watching closely. The exchange generates solid cash, pays out most of its profit as dividends, and dominates a market it essentially owns — a wonderful business with a stubborn technology problem at its core.
Saved answer · last researched 23 Oct 2026