BOJ Raises Interest Rate to 31-Year High as Yen Weakens

The Bank of Japan raised its benchmark interest rate by 25 basis points to 1.25% on Friday, taking borrowing costs to their highest level in 31 years as policymakers seek to prevent inflation from moving persistently above the central bank’s 2% target. The BOJ board approved the increase from 1% by a 7-2 vote, with Toichiro Asada and Ayano Sato opposing the move.

Despite the widely expected BOJ rate hike, the Japanese yen weakened following the announcement. USD/JPY climbed to around 156.96 as traders focused on the dissenting votes and limited guidance about how quickly the central bank could tighten monetary policy further.

Market strategists said the reaction reflected expectations that the BOJ would deliver a stronger hawkish signal. Masahiko Loo of State Street Investment Management said the 25-basis-point increase keeps Japan's monetary policy normalization on track, but the two dissents and absence of an updated Outlook Report limited the central bank's ability to reinforce its tightening message.

Attention now turns to BOJ Governor Kazuo Ueda's comments on inflation and future interest rate increases. Analysts said persistent price pressures, rising oil prices and a weaker yen could keep additional tightening on the table. Kanako Nakamura of Daiwa Institute of Research expects the BOJ to accelerate toward roughly quarterly rate increases, while TD Securities sees the next 25-basis-point hike arriving in December.