Yen: Policy Concerns Weigh on Yen — BNY Mellon

Analyst Geoff Yu at BNY Mellon notes that recent weak Japanese GDP data and rising Japanese government bond (JGB) yields are eroding market confidence in the Bank of Japan's ability to maintain a strong yen. As of writing, USD/JPY traded around 159.27871, with the exchange rate hovering at elevated levels, reflecting a market atmosphere of caution and bearish sentiment toward the yen.

**Divergence Between Economic Fundamentals and Policy Expectations**

The weakness in Japan's domestic macroeconomic data contrasts with market expectations of central bank tightening. Analysts point out that poor GDP figures lead investors to doubt that, even if the BOJ signals policy adjustments, its actual room to support the yen exchange rate remains quite limited. Meanwhile, rising JGB yields would normally be yen-positive, but in the current environment, they instead heighten concerns over the sustainability of Japan's government debt and the central bank's ability to control the yield curve, thereby failing to provide the yen with a traditional boost.

**Capital Flows and Limited Intervention Effectiveness**

From a capital flow perspective, institutional investor behavior has further exacerbated the yen's weakness. BNY Mellon notes that after the BOJ's rate hike in June, institutional investors bought dollars and sold yen; subsequently, following official joint intervention in late July to weaken the USD/JPY rate, similar dollar buying emerged again. This suggests that despite official actions, market forces—especially institutional capital flows—continue to favor the dollar, making intervention measures difficult to sustain. Analyst Zhou Kunzhuang also cautions that FX intervention is more about signaling, and achieving long-term adjustments in exchange rate trends still requires fundamental policy shifts for support.