The theoretical USD/JPY price is shown as ¥156.06 per US dollar, while the spot rate is ¥157.04, above the upper limit of the overvalued zone and below the undervalued zone. The theoretical price has generally remained in the ¥156–¥158 range over the past 5 business days.
The theoretical USD/JPY price was announced at ¥156.06 per US dollar, while the spot rate is ¥157.04. The overvalued zone is defined as above ¥156.47, and the undervalued zone as below ¥155.66.
Over the past 5 business days, from 2026/10/19 to 2026/10/23, the theoretical price ranged from ¥156.43 to ¥158.22. The theoretical price is automatically calculated after taking factors such as interest-rate differentials and risk tolerance into account. A price above the theoretical price is considered overvalued, while a price below it is considered undervalued.