Japan Yen and U.S. Dollar notes are seen in this June 22, 2017 illustration photo.
Japan Yen and U.S. Dollar notes are seen in this June 22, 2017 illustration photo. Reuters / THOMAS WHITE

The yen fell to a fresh 20-year low against the dollar on Monday, as red hot U.S. inflation data drove up Treasury yields, diminishing the earlier boost from speculation Japanese authorities could intervene to support the currency.

Central banks' efforts to raise interest rates to curtail inflation will remain in focus this week. The Federal Reserve and the Bank of England are expected to raise rates at their meetings and there is a chance the Swiss National Bank will also hike, but little change is expected from the Bank of Japan.

The dollar climbed 0.43% on Monday to 135 yen, a 20-year peak, and edging closer to the 2002 high of 135.20.

The yen briefly rallied late on Friday when Japan's government and central bank said they were concerned by its recent sharp falls, a rare joint statement seen as the strongest warning to date that Tokyo could intervene to support the currency.

"Rising overseas yields and energy prices coupled with continued dovish Bank of Japan messages have pushed USDJPY to two-decade highs," said Barclays analysts.

They expect dollar/yen to trade between 131 and 136 this week and noted "there are no clear thresholds above (the 2002 high) other than the round figures of 136, 137 and 138."

The benchmark U.S. 10-year yield touched 3.2% on Monday morning, having gained nearly 12 basis points on Friday after U.S. inflation beat expectations, driving bets that the Fed will have to hike rates even more aggressively.

The U.S. two year yield extended Friday's gains to touch 3.159% in early trade, a fresh 14 year high. [US/]

Market pricing indicates roughly a two-thirds chance of at least 125 basis points of hikes across the Fed's next two meetings - on Tuesday and Wednesday this week and in July - according to the CME's FedWatch tool.

The Barclays analysts said they were expecting a 75 basis point hike from the Fed's two-day meeting this week.

Expectations of a more hawkish Fed are pushing up the dollar against more than just the yen. The dollar index, which tracks the greenback against six peers was 0.3% higher at 104.52, its highest in four weeks.

The euro was languishing at $1.0483, down 0.3%, and sterling was 0.32% lower at $1.2275, taking little support from exceptions the Bank of England will raise rates on Thursday, which would be its fifth hike since December.

The Swiss National Bank also meets Thursday, and a 25 basis point hike is on the cards.

The risk-friendly Australian dollar lost 0.6% and fell to as low as $0.6998 a three and a half week low, as fears about the impact of higher rates drove investors to perceived safer assets.

Similarly bitcoin, which also trades like a risk asset suffered over the weekend.

The world's largest crypto currency was around $26,400, its lowest in a month. A fall past May's low of $25,400 would be bitcoin's lowest since December 2020.