30 June 1988
The SMI was launched at 1,500 points as standard value.
7 December 1988
Less than half a year later, the first options on the SMI were tradable on the derivatives exchange SOFFEX.
16 October 1989
Black Friday on the American stock exchanges catches up with Europe at the start of the week. This resulted in the largest one-day loss on the SMI of 10.54%.
9 November 1990
The first index future on the SMI was permitted for trading on SOFFEX.
14 January 1991
All-time low of 1,287.6 points (closing rate basis)
19 August 1991
Due to the attempted coup against the then Soviet President Mikhail Gorbachev, the SMI closed down 8.04%, its third highest one-day loss.
6 January 1993
Credit Suisse (today CS Group) announces that it is to take over Swiss Volksbank.
17 May 1995
The stock exchanges in Basel, Geneva and Zurich merged to become Swiss Stock Exchange SWX. This simplified the way the SMI was calculated, as until then the prices of three stock exchanges had been used.
9 May 1996
Due to the merger with the Swedish company ASEA, the SMI bedrock was renamed ABB.
7 March 1996
Announcement of the merger of Ciba-Geigy and Sandoz to form Novartis. Both the new Novartis shares (registered and bearer shares) had a joint weighting of at least 26% in the SMI at the end of 1996.
5 May 1997
The SMI exceeded the 5,000 mark for the first time. The sharp rise in the SMI within two years was a result of the changeover to full electronic trading. The Swiss stock exchange was the first exchange in the world to introduce this between 8 December 1995 and 16 August 1996.
1 July 1997
With the adoption of Adecco as a constituent of the SMI, a previous SMI member - Adia - returned after merging with the French company Ecco.
8 December 1997
Announcement of the merger of Union Bank of Switzerland and Swiss Bank Corporation to form UBS.