The Commonwealth Bank of Australia (CBA), or CommBank, is an Australian multinational bank with businesses across New Zealand, Asia, the United States, and the United Kingdom. It provides a variety of financial services, including retail, business and institutional banking, funds management, superannuation, insurance, investment, and broking services. The Commonwealth Bank is the largest Australian listed company on the Australian Securities Exchange as of August 2015, with brands including Bankwest, Colonial First State Investments, ASB Bank, Commonwealth Securities (CommSec) and Commonwealth Insurance (CommInsure). Its former constituent parts were the Commonwealth Trading Bank of Australia, the Commonwealth Savings Bank of Australia, and the Commonwealth Development Bank.

Australian Securities Exchange Ltd (ASX) is an Australian public company that operates Australia's primary securities exchange, the Australian Securities Exchange. The ASX was formed on 1 April 1987, through incorporation under legislation of the Australian Parliament as an amalgamation of the six state securities exchanges, and merged with the Sydney Futures Exchange in 2006.