About the SPI 20

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 index.

It is published as price index (SPI20) and as performance index (SPI2C). On 30 June 1988, the SPI 20 was standardised at 1'500 points. Its composition is reviewed once a year. Calculation takes place in real time, i.e. each new transaction involving a stock included in the SPI 20 causes the index to be recalculated.

Launched on 4 Jul 2017
History available since 29 Jan 1988

Key Product Information

  • Swiss Performance Index SPI 20 Total Return

    The Swiss Performance Index SPI 20 Total Return (SPI2C) index measures the development of the Swiss Blue Chip equity market.

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  • Swiss Performance Index SPI 20 Price

    The Swiss Performance Index SPI 20 Price measures the development of the Swiss Blue Chip equity market. The 20 largest and most liquid equity instruments traded at SIX are selected as components.

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  • Swiss Index

    Methodology Rulebook Governing Equity and Real Estate Indices

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Daily Performance


Historical Index Data

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