Japan’s Record Currency Defence Fails as Yen Slips Past 160 to the Dollar

The yen fell back through 160 to the dollar in Monday Tokyo trading, erasing more than half the ground it gained from a record US-Japan currency intervention that cost Tokyo the equivalent of $96 billion in a single month.

Japan's Finance Ministry said the interventions, carried out between July 30 and Aug. 26, totaled ¥15.39 trillion — the largest monthly amount ever spent defending the currency, according to data the ministry released that Friday. The centerpiece was a joint operation with the US Treasury on July 31, the first coordinated US-Japan intervention to buy yen since 1998. The Japan TimesCNBC

Neither government has signaled another round is imminent. US Treasury Secretary Scott Bessent, asked Sunday whether the yen's renewed slide counted as a disorderly move, said it was "pretty well contained," language that stopped well short of the warnings that preceded July's action. Yahoo Finance

The currency traded above 160 in US trading for the first time in almost a month on Friday and was back above that level again Monday, a pattern traders are watching closely because Japanese authorities have historically stepped in near that threshold. Strategists told Bloomberg potential triggers for further action start as close as 161, with a heavier zone around 162 to 163, though they see little chance any new intervention would do more than buy time. The Japan TimesBloomberg

Sumitomo Mitsui Banking flagged the scale of what failed: without a fresh catalyst, it expects the dollar to creep back toward its pre-intervention high of just under ¥164. That would put the pair within reach of the 39-year low it hit before Tokyo and Washington stepped in. The Japan Times

The gap driving the move hasn't closed. Bessent has pushed the Bank of Japan to keep raising rates to support the currency, and Reuters reported those remarks have left markets nearly fully pricing in a rate hike at the BOJ's next policy meeting in September. Until then, the currency that record intervention was built to defend is trading almost exactly where it stood before the defense began. Yahoo Finance