Yen Teeters at 160 Per Dollar as Intervention Effect Fades

The Japanese yen is hovering near the psychologically important 160-per-dollar threshold as the impact of the July currency intervention fades. The move has erased almost half of the currency's gains following the intervention, when the yen strengthened to a three-month high of 155.20.

Traders are focused on whether the dollar can break through 160 yen. A sustained move above that level could increase political and market pressure on Tokyo to act again, particularly if the yen's depreciation begins to push up import costs and inflation.

Masayuki Nakajima, senior strategist for fixed income, currencies and commodities at Mizuho, warned of potential sharp market moves during thin trading hours due to Japan's Obon holiday period. He also noted that a decisive move beyond 160 yen could put the effectiveness of the recent intervention back under scrutiny.