The US dollar experienced a rebound to the 156 yen range on Friday. Earlier, it had briefly dropped to the lower 155 yen level. This movement followed a plunge.

Further details about the dollar's movement are available from the source. The rebound and plunge are noted to have occurred after hopes for a narrower rate gap.

The source provides more information about the US dollar's fluctuations, including the time frame in which the changes took place.