The Swiss franc came off marginally vis-Ã -vis the U.S. dollar today as the greenback tested offers around the CHF 1.0790 level and was supported around the CHF 1.0700 figure. Data released in Switzerland today saw the July ZEW investor confidence survey decline to 0 from 9.7 in June. Swiss National Bank reduced interest rates to a record low of 0.25% in March and is not expected to change interest rate policy anytime soon. There is ongoing speculation that SNB may be selling the Swiss franc through intervention to try and bolster economic growth. U.S. dollar offers are cited around the CHF 1.0975 level. The euro gained ground vis-Ã -vis the Swiss franc as the single currency tested offers around the CHF 1.5190 level while the British pound moved higher vis-Ã -vis the Swiss franc and tested offers around the CHF 1.7675 level.