SIX is a key financial market infrastructure company in Switzerland. The company provides services relating to securities transactions, the processing of financial information, payment transactions and is building a digital infrastructure. The company name SIX is an abbreviation and stands for Swiss Infrastructure and Exchange. SIX is globally active, with its headquarters in Zurich.

Ticker AG in Zurich was founded with the purpose of transmitting stock market prices. It was the predecessor of Telekurs AG, which later merged with other companies to form SIX.

With the opening of the new exchange, the ticker system also began to broadcast. This stock exchange ticker, one of the first on the European continent and a special application of the local telegraph, transmitted the Zurich stock exchange prices, the closing prices of other Swiss and important foreign stock exchanges in italics on a narrow strip of paper to any number of recipients.

Ticker AG introduced the first stock exchange television ever and aroused media interest with this novelty: The prices of up to ninety stocks could be followed on screen. The Neue Zürcher Zeitung described stock exchange television as a world first and devoted a technology supplement to this technical development.

Ticker AG changed its name to Telekurs AG.

The new online clearing system was based on a central computer system at Telekurs with online access for participants. Primarily, only payments in Swiss francs are processed.

The stock exchanges in Geneva, Basel and Zurich merged to form the Swiss Exchange.

The Swiss Exchange launched electronic stock exchange trading with integrated settlement and custody and discontinued ring trading the following year. The prerequisite for this step was a link to the SECOM System for SEGA and to the interbank payment system SIC, which operated Telekurs.