JSE Limited (previously the JSE Securities Exchange and the Johannesburg Stock Exchange) is the largest stock exchange in Africa. It is located in Sandton, Johannesburg, South Africa.
In 2003 the JSE had an estimated 473 listed companies and a market capitalisation of US$182.6 billion (€158 billion), as well as an average monthly traded value of US$6.399 billion (€5.5 billion). As of 31 December 2013, the market capitalisation of the JSE was at US2,007 billion.
The JSE provides a market where securities can be traded freely under a regulated procedure. It not only channels funds into the economy, but also provides investors with returns on investments in the form of dividends.
The JSE is governed by its members but through their use of JSE services and facilities, these members are also customers of the Exchange.
According to en.wikipedia