BOJ 25bp hike bets push yen to six-month high

The yen strengthened to a six-month high against the dollar as markets nearly fully priced a 25 basis point Bank of Japan hike to 1.25 percent at next week's meeting, narrowing the yield gap with the U.S. and reviving bets on faster tightening.

"Markets [are] now close to fully pricing a 25bp hike at next week's BOJ meeting," said Christopher Wong, FX strategist at OCBC Group Research, in a report.

The dollar fell 0.7 percent to 153.28 yen after touching 152.87, its lowest intraday level since Feb. 17, according to LSEG data. The move carried the currency past levels at the end of July, when the U.S. and Japan jointly intervened to curb yen weakness. Expectations for a quicker pace of hikes have mounted since last Wednesday, when BOJ policy board member Hajime Takata urged a flexible approach to tightening, saying the central bank's 2 percent inflation target had nearly been achieved and the risk of prices overheating was rising.

A hike would lift the policy rate to 1.25 percent from 1.00 percent. Takuji Aida, chief Japan economist at Credit Agricole and an economic adviser to Prime Minister Sanae Takaichi, moved his forecast for the next increase forward from January 2027, projecting another hike by January next year before a return to roughly one move every six months. Aida, a reflationist long opposed to rate increases, cited a narrow window before an extraordinary parliamentary session convenes in early October to debate Takaichi's plan to suspend an 8 percent levy on food items for two years, and warned that an accelerated pace could weigh on the economy.

The remarks from a member of the government's key economic panel suggest broadening consensus within the dovish premier's administration for further tightening that could help arrest unwelcome yen declines. BOJ Governor Kazuo Ueda said last week the central bank would debate raising rates including in September, focusing on whether inflationary risks were heightening.

U.S. Treasury Secretary Scott Bessent has added to the pressure, voicing strong support last week for "decisive" monetary steps to combat yen weakness, remarks investors read as pushing Japan to raise rates. Finance Minister Satsuki Katayama said the country would maintain close communication with the U.S. Treasury and work to preserve order in the foreign-exchange market, reiterating that policy decisions were the central bank's responsibility. Her emphasis on orderly conditions reflects concern over one-sided, speculative yen moves that could disrupt business planning and raise import costs.

Sentiment toward the yen has shifted materially over the past week, said Samara Hammoud, international economist and currency strategist at Commonwealth Bank of Australia, reflecting speculation about a potential change in the Government Pension Investment Fund's asset allocation. With about $2.06 trillion in assets, the GPIF is one of the world's largest pension funds; it currently splits its target allocation equally across domestic bonds, domestic stocks, foreign bonds and foreign stocks. A small realignment could ripple through global bond and equity markets.

The stakes extend beyond Japan. A BOJ hike would narrow the yield gap with the U.S., further strengthening the yen and potentially triggering an unwind of yen carry trades that have funded positions in global risk assets. A stronger yen also pressures Japanese exporters' earnings, while any shift in the GPIF's allocation could redirect billions of dollars across asset classes. Markets will watch the Sept. 17-18 decision for the pace of subsequent moves, with Aida's projection of another hike by January setting the baseline for how quickly the BOJ normalizes policy after a tightening cycle that has already drawn coordinated U.S.-Japan intervention to steady the currency.

This article is for informational purposes only and does not constitute investment advice.