US Treasury informed banks that it may intervene in Japan's yen, source says

By David Lawder

July 31 (Reuters) - The U.S. Treasury has informed a fig of banks that it whitethorn intervene successful the Japanese yen marketplace connected Friday and that they should "stand acceptable for aboriginal action," a root acquainted with ‌the substance told Reuters.

The announcement to banks, channeled done the Federal Reserve Bank of New York, comes a time ‌after Japanese authorities stepped successful to prop up the yen, mounting the currency up for its biggest play emergence since February, pulling it disconnected of four-decade ​lows against the dollar.

News of the imaginable involution by the U.S. Treasury helped propulsion the yen higher against the dollar connected Friday. It past traded astatine 159.09 to the dollar aft trading arsenic debased 163.65 connected Thursday.

The method of imaginable Treasury involution was not instantly clear. The Federal Reserve has maintained a dollar liquidity swap enactment with the Bank of Japan and 4 different large cardinal banks since 2013.

Japan's ‌top currency diplomat Atsushi Mimura successful Tokyo Friday ⁠declined to remark connected involution but hinted astatine U.S. engagement successful the effort to stem the yen's decline, including alleged "rate checks" -- requests to dealers for indicative dollar/yen quotes that are considered a precursor to ⁠interventions.

Mimura added that the U.S. enactment "goes beyond intelligence support."

The Reuters study of Treasury's announcement to banks of imaginable involution "fits successful with the presumption successful the marketplace that the New York Fed has been carrying complaint checks, truthful it's adding to the nervousness of marketplace participants that determination could ​be ​further intervention," said Lee Hardman, currency strategist astatine MUFG successful London. "It decidedly ​helps enactment the thought that determination is involution ‌risk connected the table."

U.S. Treasury Secretary Bessent said successful an X societal media station that the Treasury maintains "a beardown narration and adjacent coordination" with Japanese authorities, but did not corroborate the involution preparations.

He said helium looked guardant to gathering with Bank of Japan Governor Kazuo Ueda astatine the U.S.-hosted G20 concern ministers and cardinal slope governors gathering successful Asheville, North Carolina, astatine the extremity of August.

"Japan's system continues to execute good nether Prime Minister Takaichi, Governor Ueda and the Bank of Japan Board, which has demonstrated a beardown ‌commitment to monetary and fiscal stability,"

On Thursday, U.S. Treasury Secretary Scott Bessent told ​Fox Business Network that the yen "seems precise undervalued to me" and that Japanese ​Prime Minister Sanae Takaichi was enacting "strong policies" that would ​help Japan's economical fundamentals.