Westpac Banking Corp
WBC
CommBank
CBA
Fortescue Ltd
FMG
Rio Tinto Ltd
RIO
National Australia Bank Ltd
NAB
The Australian Securities Exchange is a vertically integrated securities exchange business offering listing, data, trading, clearing, and settlement services across equities, debt, and derivatives. ASX benefits from various effective monopolies across its business and a disproportionately large listings business from Australia’s outsize natural resources sector.