Key Takeaways
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- Morgan Stanley forecasts USD/JPY falling from ~157 to around 140 in Q1 2026 if the Fed cuts rates twice amid a US slowdown.
- Strategists argue the pair is currently “detached from fair value” and expect lower US yields to pull it back toward equilibrium.
- By late 2026 they see USD/JPY rebounding to ~147 as US growth recovers and demand for yen-funded carry trades returns.
- The bank also recommends long 10-year JGBs and a 10s–30s JGB steepener, expecting Japan’s yield curve to bull-steepen.
What Happened?
Morgan Stanley strategists say the yen is poised for a significant rally against the US dollar in the coming months, contingent on the Federal Reserve delivering back-to-back rate cuts as signs of a US economic slowdown build. In their latest note, they argue that USD/JPY has diverged from its fair value and that falling US yields would drive a reversion, pushing the pair down to roughly 140 in the first quarter of 2026 from around 156–157 today.
The call comes despite the yen’s recent weakness, driven by concerns over Prime Minister Sanae Takaichi’s spending plans, worries about Japan’s fiscal trajectory, and fading expectations of a near-term Bank of Japan rate hike. The yen has fallen 5.6% against the dollar this quarter, making it the worst performer among G10 currencies. Against this backdrop, officials including Finance Minister Satsuki Katayama and Growth Minister Minoru Kiuchi have publicly flagged the possibility of FX intervention and expressed “high” concern over speculative moves, adding a policy layer to an already stretched currency.
Why It Matters?
For FX and rates investors, Morgan Stanley’s view highlights a potential inflection point in a crowded macro trade: long dollars versus the yen. If the Fed does cut twice, narrowing rate differentials and pulling US yields lower, the bank expects USD/JPY to move closer to its modeled fair value, delivering sizable gains to investors positioned for yen strength after a period of heavy underperformance. Their projection that Japanese fiscal policy is “not especially expansionary” also tempers fears of runaway deficits and supports a more constructive view on JGBs and the currency in the near term. However, the strategists also see the yen’s strength as cyclical rather than structural.
As they anticipate a US recovery in the second half of 2026 and renewed appetite for yield, they expect carry trades funded in yen to re-accelerate, pushing USD/JPY back up toward 147 by year-end. That path—yen strength on Fed easing followed by renewed weakness on global risk-on—implies a tactical window for long-JPY trades rather than a one-way secular story. Meanwhile, the risk of Japanese FX intervention around current levels near 157 adds asymmetric headline risk for traders who remain short the yen while officials repeatedly signal discomfort with further depreciation.
What’s Next?
Looking ahead, the key catalysts will be Fed policy decisions, US data, and any shift in the Bank of Japan’s stance. If incoming US growth and inflation numbers justify the back-to-back cuts Morgan Stanley is assuming, the bank’s scenario of lower US yields, a bull-steepening Japanese curve, and a stronger yen into early 2026 becomes more plausible. In that environment, their recommended positioning—outright longs in 10-year JGBs, a 10s–30s JGB steepener, and a short in 30-year JGB asset-swap spreads—aims to capture both falling yields and curve shape changes driven by easing US pressure and calmer fiscal concerns.
Conversely, if the Fed proves more hawkish than futures markets currently imply, the yen could remain under pressure and intervention risks would rise. For multi-asset investors, this view argues for treating USD/JPY as a dynamic macro lever: potentially rotating into yen strength trades over the next few quarters, then reassessing as US growth re-accelerates and carry becomes attractive again, particularly for strategies that borrow in low-yielding currencies to finance higher-yield risk assets.
