Dollar rises 0.2% to 159.04 yen, highest since Sept 24

The yen's slide back to levels last seen in late September puts the focus squarely on Japanese authorities, who have historically paid close attention to sharp moves in the currency. A dollar-yen rate near 159 is the kind of threshold that has previously invited verbal pushback or worse from Tokyo, and the coming sessions will show whether that pattern repeats. For crypto and other risk assets, a persistently stronger dollar is a familiar headwind, so whether this advance extends is the open question worth tracking.