The U.S. dollar edged higher against the Swiss franc on Wednesday, as markets were jittery after comments by a G7 official and ahead of a highly anticipated G20 summit later in the week. USD/CHF hit 0.9186 during European morning trade, the session high; the pair subsequently consolidated at 0.9180, adding 0.09%. The pair was likely to find support at 0.9119, the low of January 14 and resistance at 0.9227, the high of January 30. Investors remained cautious after a statement by the G7 on Tuesday reaffirmed a commitment to market-determined exchange rates and said that fiscal and monetary policy won't target exchange rates.