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The Australian Stock Exchange (ASX) lists more than 2,200 companies and has a market capitalization of approximately $1.5 trillion, or $2.15 trillion in Australian dollars (AUD). Its size places it among the 10 largest global exchanges by market cap. The Sydney-based exchanges trades in a variety of asset classes including equities, fixed income, commodities and energy. The ASX lists share prices in Australian dollars. Each Australian dollar is valued at approximately $0.75 U.S. A financial advisor can help you understand and engage with securitites on the Australian Stock Exchange.

In the early 1800s in Australia, a number of local exchanges were formed operated for various periods in cities including Melbourne, Bendigo and Ballarat. The history dates back to 1871 when the Sydney Stock Exchange began operations.

In 1987, the still-active Sydney exchange and five other state exchanges merged to form the Australian Stock Exchange. In 2006, the Australian Stock Exchange merged with the Sydney Futures Exchange to form the ASX Group.

How ASX Works

The ASX is an electronic exchange, with trades occurring through a digital platform. Orders from investors to buy or sell are entered in the ASX Trade system, which matches buy and sell orders to complete trades. Only brokers that are members of the exchange can conduct trades on the ASX.

The normal trading hours of the exchange happen from 10 a.m. to 4 p.m. Sydney time. Pre-open trading takes place from 7 a.m. to 10 a.m., during which brokers can enter orders in preparation for the opening.  From 4 p.m. to 4:10 p.m. brokers can enter, change and cancel orders in preparation for market closing.

The operations of the ASX are supervised by the Australian Securities and Investments Commission (ASIC). In addition to the regulatory oversight exercised by ASIC, the Reserve Bank of Australia oversees the stability of the Australian financial system.

ASX Listing Requirements

Digital stock price chart

The minimum criteria for being listed on the ASX include standards for free float, number of shareholders and size. Listed companies must have at least 20% of the shares free floating, and a minimum of 300 non-affiliated shareholders who have invested at least $2,000 (AUD) each. With regard to financial standards, listed companies must have $1 million (AUD) in total profit from continuing operations for the last three years, including at least $500,000 (AUD) profit over the previous 12 months.

Alternatively, companies seeking a listing on the ASX can meet the asset test, which calls for at least $4 million (AUD) in net tangible assets or $15 million (AUD) market capitalization.

Largest ASX Stocks

Australia is home to some of the world’s largest companies in the mining, financial services and technology industries. The five largest ASX-listed companies by market capitalization include:

  1. Commonwealth Bank of Australia (CBA), financial services
  2. BHP (BHP), oil and gas and mining
  3. CSL (CSL), biopharmaceutical research and development
  4. Westpac Banking Corporation (WPC), financial services
  5. National Australia Bank (NAB), financial services

One of these five largest ASX companies, Westpac Banking Corporation, was the first company founded in the then-colony of New South Wales. It was created in 1817.

Special ASX Considerations

Local time in Sydney is 15 hours ahead of New York time, seven hours ahead of London time and three hours ahead of Hong Kong time.  This makes the ASX the first one of the world’s major exchanges to open for normal trading on each business day.

How to Invest In the ASX

Foreign investors can trade directly in securities listed on the ASX only if they open an account with a broker that participates in the exchange. International brokers may not all have ASX trading privileges.

Investors can choose from a number of indices tied to prices of various securities listed on the ASX. The oldest index of Australian shares is the All Ordinaries index. It consists of share prices for the 500 largest companies listed on the ASX. The S&P/ASX 200 is a market cap-weight index of large ASX stocks.

Bottom Line

Australian investor

The ASX is the first major stock exchange to open each trading day by virtue of its location in relation to the international date line. It’s one of the world’s largest exchanges by market capitalization and lists major players in financial services, mining and energy and pharmaceuticals. American investors may find that the easiest way to invest in the ASX is to use one of the exchange-traded funds that track one of the ASX-based indexes. These are listed on U.S. exchanges.

Tips on Investing

  • If the idea of trading securities listed on the Australian Stock Exchange appeals to you, consider working with an experienced financial advisor who understands the opportunities and risks of investing in international securities markets. SmartAsset’s free tool matches you with financial advisors in your area in five minutes. If you’re ready to be matched with local advisors who will help you achieve your financial goals, get started now.
  • Since investing in non-U.S. securities can be more complicated than investing on a U.S. exchange, it’s important to keep close tabs on how much of your portfolio goes into such investments. A free, easy-to-use asset allocation calculator can be immensely helpful in keeping your investments balanced.

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Mark Henricks Mark Henricks has reported on personal finance, investing, retirement, entrepreneurship and other topics for more than 30 years. His freelance byline has appeared on and in The Wall Street Journal, The New York Times, The Washington Post, Kiplinger’s Personal Finance and other leading publications. Mark has written books including, “Not Just A Living: The Complete Guide to Creating a Business That Gives You A Life.” His favorite reporting is the kind that helps ordinary people increase their personal wealth and life satisfaction. A graduate of the University of Texas journalism program, he lives in Austin, Texas. In his spare time he enjoys reading, volunteering, performing in an acoustic music duo, whitewater kayaking, wilderness backpacking and competing in triathlons.
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