USD/CHF: Options market bets on CHF strength as US brands Switzerland as currency manipulator

One-month risk reversals on USD/CHF, a gauge of calls to puts, fell sharply from -0.50 to -1.20 on Thursday, indicating increased demand for puts, a sign of investors adding bets to position for strength in the Swiss Franc (CHF). 

Risk reversals slipped as the US Treasury Department branded Switzerland as a currency manipulator. That limits the nation's ability to stem the currency's rise. 

Switzerland was on US Treasury's radar after spending 90 billion Swiss francs ($101.50 billion) on foreign currency intervention in the January to June period. 

The Swiss franc rallied to a six-year high of 0.8826 on Wednesday and was last seen trading near 0.8850.