Franc
The Swiss franc (ISO code: CHF or 756), which appreciated significantly against the new European currency from April to September 2000, remains one of the world's strongest currencies, worth today around five-sixths of a euro. The Swiss franc is used in Switzerland and in Liechtenstein. Liechtenstein retains the ability to mint its own currency, the Liechtenstein franc, which it does from time to time for commemorative or emergency purposes.
Currency intervention
The Economist asserts that the SNB dropped the cap for the following reasons: first, rising criticisms among Swiss citizens regarding the large build-up of foreign reserves. Fears of runaway inflation underlie these criticisms, despite inflation of the franc being too low, according to the SNB. Second, in response to the European Central Bank's decision to initiate a quantitative easing program to combat euro deflation. The consequent devaluation of the euro would require the SNB to further devalue the franc had they decided to maintain the fixed exchange rate. Third, due to recent euro depreciation in 2014, the franc lost roughly 12% of its value against the USD and 10% against the rupee (exported goods and services to the U.S. and India account for roughly 20% Swiss exports).