The Swiss franc appreciated vis--vis the U.S. dollar today as the greenback tested bids around the CHF 0.9925 level and was capped around the CHF 1.0075 level. Swiss National Bank President Roth was quoted as saying the central bank will be more firm in the future in warning about possible future threats to the financial system. U.S. dollar offers are cited around the CHF 1.0375 level. The euro weakened vis--vis the Swiss franc as the single currency tested bids around the CHF 1.5760 level while the British pound moved higher vis--vis the Swiss franc and tested offers around the 1.9835 level.