The Swiss franc fell against the dollar and the euro on Thursday after the US Federal Reserve kept its interest rates on hold and as expectations for a possible rate hike in Europe in July gain momentum.
"It is the statement from Ben Bernanke, who said that growth is not as much at risk as expected and that helps the dollar," said Clariden Leu analyst Sandro Baechli.
The Fed left the benchmark overnight fed funds rate at 2 percent and effectively ended an aggressive rate-cutting campaign that the Fed launched in September to put a floor under an economy hit hard by a housing downturn and credit crisis.