Trading In Shares Belonging To The New SLI Swiss Leader Index From 24 September On virt-x

By resolution of the Admission Board of the SWX Swiss Exchange, trading in all equities belonging to the SLI Swiss Leader Index that did not previously belong to the SMI will migrate to virt-x as of 24 September 2007. The securities in question will remain listed in the main market of the SWX Swiss Exchange and will be admitted to trading in the UK Exchange Regulated Market segment. As far as issuers' duties are concerned, there will be no changes to the current regulatory framework.

The SLI Swiss Leader Index comprises the 30 largest and most liquid equities of the Swiss equity market (domestic stocks), which is represented by the SPI Family. The index weighting of the individual securities is limited by a 9/4.5 capping model. The index weighting of the four securities with the largest market capitalisation is capped at 9 %. Where necessary, the index weighting of other securities is limited to 4.5 %. The cap is calculated on the basis of a capping factor which usually remains the same for a three-month period.

For more information on the SLI Swiss Leader Index, please visit