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The Sydney Stock Exchange (SSX) is a stock exchange with its headquarters in Sydney, Australia. It is a wholly owned subsidiary of the AIMS Financial Group, with a market license granted by the Australian Securities & Investment Commission (ASIC) on 5 November 2013. Formerly known as the Asia Pacific Exchange (APX), APX listed its first few companies on 6 March 2014.

The exchange first opened in 1997 as the Australian property exempt market before receiving a stock exchange license in August 2004. In November 2015, the exchange was renamed the Sydney Stock Exchange.^[1] To promote Sydney and Australia as a leading financial centre, and allow the listees to be identified as being listed on a major city's exchange, the exchange became known as the Sydney Stock Exchange (SSX). The exchange is an observer member of the Federation of Euro-Asian Stock Exchanges.

The SSX's corporate logo consists of a black background with multiple off-centre red circles.

• Charles Challice, the fifth chief executive of the Sydney Stock Exchange
• List of stock exchanges in the Commonwealth of Nations

• Sydney Stock Exchange web site
• Former Asia Pacific Stock Exchange web site
• Austock Group web site