"The reasons behind the setting of the minimum exchange rate in September 2011 retain their validity," Chairman Thomas Jordan said on Friday. "The financial problems in many countries continue to provide a basis for potential safe-haven capital flows."
The Swiss blue-chip index SMI, a measure of the largest and most actively traded companies, tumbled 1.00 per cent to 6,508.66. The broader Swiss Performance Index fell 0.95 per cent to stand at 5,990.69.