MUFG sees USD/JPY hitting 40-year high as Fed drives dollar rally

The yen's slide to a 40-year low is far from over, with MUFG arguing the Federal Reserve's rate trajectory will overwhelm any Bank of Japan response.

Stronger US interest-rate expectations are overpowering the Bank of Japan's latest rate hike, pushing USD/JPY toward a 40-year high, according to Mitsubishi UFJ Financial Group. The pair traded near 161.23 on Wednesday.

"The Fed's repricing has been the dominant driver, and until the US rate outlook shifts materially, the yen will remain under pressure," said a currency strategist at MUFG. "The BoJ's moves are being overshadowed by the sheer force of US rate expectations."

The Bank of Japan raised its benchmark rate by 15 basis points to 0.50% in its latest meeting, the highest level since 2008. Yet the yen has continued to weaken, with USD/JPY gaining more than 12% over the past 12 months. The divergence reflects the fed funds rate at 5.25% to 5.50%, where it has remained since July 2023, while OIS markets price less than 50% probability of a cut at the Federal Reserve's next meeting.

A sustained rally to 40-year highs would have far-reaching consequences. Japanese exporters would gain a competitive edge, while importers face rising costs that could squeeze margins. The weaker yen also fuels carry-trade activity, where investors borrow in low-yielding yen to invest in higher-yielding dollar assets. Japanese authorities previously intervened when the pair approached 160, and a breach of that level could trigger fresh intervention concerns.

The yen's depreciation has already reshaped global capital flows. Japanese investors have poured record amounts into overseas bonds and equities, seeking higher returns unavailable in domestic markets. Ministry of Finance data show Japanese institutional investors allocated more than $200 billion to foreign securities in the past year, much of it dollar-denominated.

The last time USD/JPY traded near current levels was in April 2024, when the pair briefly touched 160.17 before the Bank of Japan and Ministry of Finance conducted intervention estimated at roughly ¥9.8 trillion ($62 billion). The yen strengthened temporarily but eventually resumed its downtrend as US economic data continued to surprise to the upside.

Rate Differentials Drive the Trade

The core of the yen's weakness lies in the interest-rate gap between the US and Japan. The US-Japan 10-year government bond yield spread stands at roughly 380 basis points, near the widest in decades. Even after the BoJ's rate increase, Japanese 10-year yields hover near 1.05%, compared with US 10-year yields near 4.49%. That gap makes dollar-denominated assets significantly more attractive to global investors.

MUFG's forecast aligns with a broader consensus among currency strategists. Bank of America recently advised clients to stay long the dollar into the third quarter, citing resilient US economic growth. The dollar index has gained about 4% year-to-date, reflecting broad-based strength against major currencies.

For the yen to reverse course, either the Federal Reserve would need to signal a more aggressive easing cycle, or the Bank of Japan would need to accelerate its tightening pace significantly. Neither appears imminent. Fed Chair Jerome Powell has repeatedly emphasized patience on rate cuts, while BoJ Governor Kazuo Ueda has signaled a gradual approach to further hikes.

The next test for USD/JPY comes with the US nonfarm payrolls report due Thursday, where economists expect 114,000 jobs added in June. A stronger-than-expected reading would reinforce the case for delayed Fed cuts and could push the pair toward the 162 level. The Bank of Japan's next policy decision is scheduled for July 31.

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