22.08.2011 SIX Swiss Exchange
Adjustments to the equity indices on 19 September 2011[pdf]
08.07.2011 SIX Swiss Exchange
Index adjustments on the occasion of the ordinary index review[pdf]
14.03.2011 SIX Swiss Exchange
Definite index adjustments effective from 21 March 2011[pdf]
11.03.2011 SIX Swiss Exchange
Changes to the Index Rules for the SMI® and SPI® Index Families as well as the SLI Swiss Leader Index® effective as of 1 July 2011[pdf]