The Swiss franc fell against the dollar on Tuesday as the US currency gained from a sharp drop in oil and commodity prices, and markets waited on a US interest rate decision later in the session. The US Federal Reserve is likely to keep benchmark interest rates steady at 2.0 percent as it faces higher risks of inflation and threats to economic growth.
Franc rates are "waiting for central banks - going into a week filled with central bank decisions", said UBS analyst Reto Huenerwadel. The franc had slipped 0.2 percent to 1.0503 per dollar compared to Monday's New York close, while it was slightly higher against the euro, trading at 1.6311 per euro.