Japanese Yen Outlook: USD/JPY jump mirrors JGB selloff and rising fiscal unease

• Long-end JGB yields are rising, hinting at growing fiscal caution.
• The yen has been sliding, partly linked to higher yields.
• Fiscal plans and China tensions may add further downside risk.
• USD/JPY shows early topping signs, suggesting near-term caution.
• Key risk events this week include Tokyo CPI and U.S. GDP, PPI, retail sales, consumption, and core PCE data

Summary

Japan’s fiscal outlook has been one factor behind the yen’s slide, with long-end JGB yields hitting record highs as traders grow uneasy about the scale of potential new borrowing. The move has added to existing pressures on the currency, including softer growth sentiment from the China spat. But while these forces have pulled USD/JPY higher, the charts are now warning the move may be vulnerable, with a topping pattern and fading momentum pointing to the risk of a near-term reversal.

Sell Japan?

Japan’s bond market has come under clear pressure since prime minister Sanae Takaichi took office, with super-long JGB yields hitting record highs as traders grow uneasy about the country’s fiscal path. With debt already the highest in the developed world, talk of a supplementary budget above ¥25 trillion and calls from ruling-party lawmakers to issue more bonds are feeding worries about how much additional borrowing the market can absorb. That is pushing term premia higher, especially at the long end of the JGB curve.

Source: TradingView

The rise in yields has been accompanied by a sharp slide in the yen, suggesting something akin to a ‘sell Japan’ trade is underway. As seen in the graphic below tracking correlations between USD/JPY and select market indicators over the past fortnight and quarter, it has shown a strong, significant relationship with Japanese benchmark 10-year bond yields over both periods, bolstering that view.

Source: TradingView

While expectations for stronger nominal growth have supported Japanese equities, the backdrop is hurting the yen and demand for JGBs. The diplomatic spat with China triggered by Takaichi’s support for Taiwan earlier this month adds another downside risk for growth, which may also be contributing to the yen’s slide.

For a pair historically driven by interest rate differentials and risk appetite, the message from the correlation analysis above suggests USD/JPY traders should pay close attention to fiscal and economic developments in Japan right now, not just the United States. Any headlines that may influence Japanese bond yields now carry increased significance. And should the yen slide continue or accelerate, the threat of intervention from the Bank of Japan cannot be ruled out given recent messaging from government officials.

Historic Drivers Breakdown

Unusually, USD/JPY has shown little to no relationship with shifts at either the front or back of the U.S. yield curve over the past fortnight and quarter. Nor is there any sign of the inverse relationship it has often historically seen with market volatility measures such as VIX futures over those periods, demonstrating an increasingly strong positive relationship, especially in recent weeks. Rather than declining as volatility has risen, USD/JPY has often done the opposite. That hints market turbulence and rising Japanese borrowing costs are yet to meaningfully spark an unwind in carry trades out of the U.S. dollar into the yen.

Evaluating Event Risk

Looking at the economic calendar in the week ahead, the key risk event in Japan arrives on Friday with the release of Tokyo consumer price inflation for November, a print that offers markets a glimpse of what is likely to be seen when the national report is released in three weeks’ time. Should we see an upside surprise in the key core or core-core figures, it may spark another unwind in the yen and government bonds. The opposite applies should there be a downside surprise from these prints, a result that may place downside pressure on term premia for longer tenors.

Source: Refinitiv (U.S. Eastern Time)

Despite the lack of relationship between USD/JPY and U.S. yields recently, it would be foolhardy to suggest the U.S. interest rate outlook no longer matters for this pair. It does. I suspect the breakdown in the relationship is partly due to the government shutdown, resulting in no major official economic data being released. That created an environment where there was little signal for traders to latch on to, delivering nothing but a raft of Fed speak with no uniform message. However, with data starting to flow again, I suspect the relationship with U.S. rates will begin to strengthen again, as seen last Friday when dovish remarks from influential New York Fed president John Williams helped spark a large unwind in USD/JPY.

Source: Tradingview

Should the U.S. rates link continue to strengthen, GDP, PPI, retail sales, consumption and core PCE inflation figures loom as key risk events for USD/JPY traders this week. Data that reduces the probability of rate cuts may see USD/JPY rise, with the opposite likely should the figures undershoot on the downside. As opposed to recent weeks, there will be a dearth of Fed speak with members entering their media blackout period before the December FOMC meeting.

USD/JPY Bearish Reversal Signal Emerges

Source: TradingView

As seen in the daily chart above, Williams’ comments on Friday not only delivered a large reversal in USD/JPY but also a notable topping signal in the form of a three-candle evening star, warning of the potential for near-term downside. While the broader message remains bullish, there is also early evidence that upside strength may be starting to wilt with RSI (14) breaking the uptrend it had been in since the early part of November. MACD is also beginning to curl over towards the signal line, providing a subtle reminder to bulls not to get too aggressive at these levels.

On the downside, levels to watch include the October uptrend, minor supports at 155.05 and 153.60, along with more pronounced support at 153.00. Should the bearish reversal pattern prove to be a false signal, upside levels of interest include 157.90 and 158.88.