Japanese Yen: Wider range with intervention support against US Dollar – HSBC

FXStreet Insights Team FXStreet

HSBC strategists discuss the sharp post-intervention drop following coordinated action by Japan’s Ministry of Finance and the US Treasury. They argue that joint intervention is more effective than unilateral moves but unlikely to change the broader trend without improved Japanese fundamentals. They expect USD/JPY to remain mostly range-bound, potentially in a wider band, and stay cautious on a sustained US Dollar (USD) downtrend versus Japanese Yen (JPY).

Joint action, range-bound dynamics

"USD/JPY fell sharply after coordinated interventions to support the JPY on 30 and 31 July by Japan’s Ministry of Finance (MoF) (Nikkei, 1 August) and the US Treasury (FT, 1 August). Both authorities confirmed the joint action on 3 August and said they will not hesitate to do more if needed (Bloomberg, 3 August)."

"After the MoF’s solo intervention in April-May 2026, USD/JPY took seven weeks to return to pre-intervention levels. We believe the market will now be more cautious to rebuild speculative short JPY positions given the increasing scale of MoF intervention, involvement by the US Treasury and sharper USD-JPY declines."

"Second, intervention alone is unlikely to change the underlying trend of USD/JPY. A sustained JPY recovery would likely require more attractive real interest rates (i.e., interest rates adjusted for inflation) in Japan and reduced fiscal concerns, while a major shift in residents’ capital flows should also help."

"Our base case remains that USD/JPY will be mostly range-bound, capped by periodic MoF intervention but supported by persistently negative real rates in Japan. The range may now be wider due to both USD factors (recent softer US data, less predictable Fed communication and persistent geopolitical uncertainty) and JPY factors (joint intervention, potential changes involving the Bank of Japan (BoJ), the Government Pension Investment Fund and tax-exempt savings accounts)."

"However, unless we see much faster BoJ rate hikes, a clearer government preference for JPY strength (rather than saying that JPY weakness has both positive and negative implications) and a dialling back of fiscal expansion ambitions, we remain cautious about projecting a sustained downtrend for USD/JPY."

(This article was created with the help of an Artificial Intelligence tool and reviewed by an editor. Know more.)

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