The US Treasury bought Japanese yen for the first time since 1998, spending $5-10 billion in a rare forex intervention that has analysts

The US Treasury informed a number of banks that it may intervene in the Japanese yen market on Friday and that they should "stand ready for future action."

Banks told to prepare for potential operation to buy Japanese currency

The United States Treasury intervened in yen exchange rates on Friday. This action supported the Japanese currency through outright purchases by the Treasury. The Federal…

Tokyo and Washington saw eye to eye on halting yen weakness