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SWX Swiss Exchange Index Adjustments On 3 April 2006 - Update

Date 21/03/2006

SWX message no.12/2006 of 1 March 2006 informed you of the adjustments of free float values and number of shares on 3 April 2006.

In response to information from issuers and as a result of various changes to free float values since the first publication, the list was updated once again.

According to the SXI® Rules paragraph 2.2 , the capping factors for SXI LIFE SCIENCES® and SXI Bio+Medtech® stocks will be set back to a maximum weighting of 10%.

All adjustments carried out on 31 March 2006 after the closing and which are scheduled to take effect on 3 April 2006, are available on the SWX website:
www.swx.com/indices_en.html