The SPI Family comprises a selection of companies from the Swiss All Share Index which includes all
Swiss companies listed on the SIX Swiss Exchange, and upon request primary listed foreign shares.
In order to qualify for the SPI Family, a security must have a minimum free float
(number of freely tradeable outstanding shares) of 20%. Ranking is based
on the free-float-weighted market capitalisation.
The SPI is divided into sectors on the basis of economic activity. This classification is based on
the International Classification Benchmark ICB from Dow Jones and FTSE, which simplifies international
performance comparisons significantly. The share selection list in which all SPI securities are ranked
is the basis for the allocation into the sizes small, middle and large.
SPI ex SLI
Rules governing the SPI Family
Rulebook governing Equity and Real Estate Indices (eff. 25 March 2019)
The SPI 20 is the blue chip index within the SPI index family and comprises the 20 largest equities in the
SPI. The SPI 20 represents about 85% of the total capitalisation of the Swiss equity market. It is
free-float-adjusted, which means that only the tradable portion of the shares is taken into account in the