USD/JPY rebounds to 158 as yen intervention support fades

USD/JPY climbed back toward 158 on Tuesday, erasing most of last week's post-intervention decline as investors refocused on Japan's fiscal outlook and the persistent rate gap between Tokyo and Washington. The pair traded at 157.95, up 0.49 percent on the day, after touching a low of 157.18 on Monday.

"US intervention to support the yen will remain relatively small in scale," analysts at MUFG said. "Joint intervention may prove more effective at helping to provide support for the yen in the near-term, but we still believe that it can only buy time."

Japan's Ministry of Finance confirmed that Tokyo and Washington conducted coordinated intervention last week, with Bloomberg estimating Japan spent around $34 billion. Finance Minister Satsuki Katayama said authorities would not hesitate to intervene again if necessary, while US Treasury Secretary Scott Bessent stated Washington remains prepared to cooperate in future interventions. The Bank of Japan raised its policy rate to 1 percent in June, yet borrowing costs remain well below those of other major economies, sustaining carry trade demand and providing a tailwind for USD/JPY.

The yen's vulnerability extends beyond rate differentials. The ruling Liberal Democratic Party has backed a proposal to cut the food consumption tax from 8 percent to 1 percent starting April 2027, alongside roughly ¥600 billion in annual cash transfers for low- and middle-income households — a plan lacking a defined funding mechanism that has raised investor concerns about Japan's fiscal trajectory.

Intervention Can Only Buy Time

TD Securities takes a similar line on the durability of any downside move. "Momentum could briefly push USDJPY lower to 153, but we do not expect the pair sustainably trading below it, absent BoJ and full US Treasury commitment," the firm said. Their trend-following signals show USD/JPY's trend has turned from uptrend to neutral, but it is not yet in a downtrend. TD maintains a year-end forecast of 159.00 for the pair.

MUFG argues that "there will need to be a change in fundamentals as well to encourage a sustainable reversal of the yen weakening trend that has been in place over the last five years." The bank describes "more US pressure on Japan to allow a faster pace of BoJ policy normalization as part of the joint intervention arrangement" as "an important step to help reverse yen weakness."

US Labor Data in Focus

Attention now turns to US labor market data, with the Job Openings and Labor Turnover Survey due Tuesday ahead of Friday's Nonfarm Payrolls report. Economists expect the US economy to have added 83,000 jobs in July after 57,000 in June, while the unemployment rate is forecast to rise to 4.3 percent from 4.2 percent. Stronger-than-expected figures could reinforce expectations of a Federal Reserve rate hike in September, providing additional support for the US dollar.

In the one-hour chart, USD/JPY holds below the 100-period simple moving average at 159.85 and the 200-period SMA at 161.78. Initial resistance sits at the 38.2 percent Fibonacci retracement at 158.58, followed by the 50.0 percent level at 159.61. On the downside, support is seen around the 157.72 trend-line break area, with the 23.6 percent retracement at 157.30 underpinning the move; a deeper slide would expose the Fibonacci anchor near 155.23.

The last time USD/JPY traded above 160 was in late June, when the pair peaked near 162 before the BoJ's June rate hike and subsequent intervention triggered a sharp pullback. Whether the current rebound extends toward 159 or reverses toward 155 will likely hinge on Friday's payrolls print and any further signals from Tokyo on intervention readiness.

This article is for informational purposes only and does not constitute investment advice.