Yen intervention talk resurfaces as Bessent and Katayama meet in Bangkok

Another round of yen intervention speculation is stirring once more. After fading over the past two weeks, talk of official action on the yen looks set to return to the agenda when Japanese and US policymakers meet next week.

Attention shifts to Bangkok, where US Treasury Secretary Bessent and Japanese Finance Minister Katayama will be in Thailand for the IMF and G20 meetings scheduled for next week. Bank of Japan Governor Ueda has also just confirmed that he will be there, adding another familiar face to the gathering.

A coordinated intervention effort is not necessarily on the cards simply because the officials are all in the same city. But given the way Washington and Tokyo have interacted in recent months, I would not dismiss the chance of further yen-related discussions.

Both governments have already demonstrated a willingness to support the Japanese currency together, following the joint intervention carried out at the end of July. That operation was a historic $85 billion move aimed at propping up the ailing yen after it struck a fresh 40-year low against the dollar, with USD/JPY near 164 at the time.

With USD/JPY still trading in the region of 158, the threat of another round of intervention has hardly disappeared. For markets, the question, in my view, is whether anything beyond the customary diplomatic language emerges from these meetings.

Will Bessent and Katayama treat the venue as an opportunity to reaffirm their commitment to tackling excessive currency volatility? Could there be another warning aimed at speculators? Or might Ueda give some indication of how prepared the BOJ is to tighten monetary policy further?

Any of those options would be enough to give yen traders something to think about. That is all the more likely if USD/JPY pushes higher and edges nearer to the 160 mark.

Still, Bangkok headlines are not the only factor to watch. The broader direction of Treasury yields continues to play a key role in trading sentiment, and the US CPI report will be released at roughly the same time as next week's meetings. The latter, in particular, could have a major say in the near-term direction of USD/JPY.