The yen jumped as much as 1.2% against the U.S. dollar to a six-week high on Friday, after faster-than-expected inflation in Tokyo supported bets for a Bank of Japan interest rate hike next month. The dollar sagged against most major peers in trading thinned by the U.

The Japanese yen rose to a six-week high against the dollar Friday. While trading was thin because of the Black Friday holiday in the U.S., the moves are still worth watching after volatility in the Asian currency sparked market turmoil earlier this year.

The yen soared to a one-month high in the upper 149 level against the U.S. dollar Friday as higher-than-expected inflation data fuele