Intervention threat present but delayed by slow grind
The yen has breached 161.95 to hit a 40-year low against the dollar, keeping intervention risk alive. However, the slow, grinding pace of yen weakness is one of the factors officials monitor for intervention necessity. Because the decline has been gradual rather than a sudden, sharp drop, authorities may not feel compelled to step in immediately, leaving traders in a waiting and watching mode where the pair could continue to drift higher but with the constant threat of intervention.