The dollar has ended the week with a loss, while the yen has seen significant gains. Against the dollar, the Japanese currency rose by about 2.4%, marking its best weekly performance since July.

This increase in the yen's value is notable, and it appears to be related to changes in expectations about interest rates.

Further information about the factors contributing to these currency fluctuations can be found in the original report, which provides more details about the current state of the dollar and the yen.