The SMI Expanded is a capitalization-weighted stock index of large-cap and mid-cap companies listed on the

SIX Swiss Exchange SIX Swiss Exchange (formerly SWX Swiss Exchange), based in Zurich, is Switzerland's principal stock exchange (the other being Berne eXchange). SIX Swiss Exchange also trades other security (finance), securities such as Swiss government bonds and d ...

. It is made up of the components in the Swiss Market Index (SMI) and in the SMI MID, representing more than 90% of the total SPI market capitalization. It was created on November 15, 2004 and retroactively computed from January 3, 1996, with a calibration on 1,000 points as of December 31, 1999.

Current constituents

The current 50 constituents are the 20 large-cap companies listed on the Swiss Market Index (SMI) page and the 30 mid-caps listed on the SMI MID page.

Notes and references

Stock market Swiss stock market indices {{finance-stub