WIR Bank
The WIR Bank, formerly the Swiss Economic Circle (German: "Wirtschaftsring-Genossenschaft"), or WIR, is an independent complementary currency system in Switzerland that serves businesses in hospitality, construction, manufacturing, retail and professional services. WIR issues and manages a private currency, called the WIR Franc, which is used in combination with the Swiss Franc to generate dual-currency transactions.
Swiss franc
The franc fell 8.8% against the euro, 9.5% against the dollar, and at least 8.2% against all 16 of the most active currencies on the day of the announcement. It was the largest plunge of the franc ever against the euro. The SNB had previously set an exchange rate target in 1978 against the Deutsche mark and maintained it, although at the cost of high inflation. Until mid-January 2015, the franc continued to trade below the target level set by the SNB, though the ceiling was broken at least once on 5 April 2012, albeit briefly.