Swiss Performance Index

The Swiss Performance Index (SPI) is a wide total-return index that tracks equity primarily listed on SIX Swiss Exchange with a free-float of at least 20%, and excluding investment companies. The index covers large, mid and small caps and is weighted by market capitalization. Most constituents, although not all, are domiciled in Switzerland or the Principality of Liechtenstein.

The SPI is Switzerland's most closely followed performance index. It is used as a benchmark for mutual funds, index funds and ETFs, and as an underlying index for derivative financial instruments such as options, futures and structured products.

In 2020, the SPI, along with other SIX indices, was endorsed under the EU Benchmarks Regulation and is registered with the European Securities and Markets Authority, which means that it can be used as an underlying for financial products sold in the EU.

In 2025, additionally a Net-Return variant of the SPI Index was introduced.

The underlying share universe of the SPI is the Swiss All Share Index and includes approximately 230 equity issues. For a company's shares to be included in the SPI, the company must be domiciled in Switzerland and the shares must have a free float equal to or greater than 20%.

In 1998, investment companies were taken out of the SPI Family and put into the specially designed Investment Index in order to avoid double (direct + indirect) listing of SPI components. Exceptions to this rule can be granted to Investment Companies that invest in companies not primarily listed at SIX.

The SPI acts in turn as the universe of several other indices offered by SIX Swiss Exchange:

Below is the list of the 214 SPI shares as of September 18, 2020. Some of the companies are primarily listed in Switzerland, but have their headquarters outside Switzerland and were included in the underlying share universe upon request. Some companies have two kinds of shares and thus appear twice in the SPI.