The Bank of Japan officially announced a 25 basis point interest rate hike on Tuesday. However, the yen gave back some of its gains against the US dollar and Japanese government bond prices fell, as markets speculated the central bank may need to take more decisive action to support the currency and contain inflation. The yen was trading at 160.186 per dollar, having earlier touched 160.05. The yield on the benchmark 10-year sovereign bond rose 8 basis points, with yields on 20-year and 30-year bonds also jumping by similar margins. The Nikkei 225 index briefly touched the key psychological level of 70,000 points during the session. Investors will focus on the press conference by Deputy Governor Shinichi Uchida following the policy decision.
On Tuesday, the BoJ formally announced a 0.25 percentage point increase in its benchmark interest rate to 1.00%, marking the highest level since September 1995, just before the onset of Japan's near-three-decade-long era of near-zero interest rates following the collapse of its "bubble economy." One of the central bank's board members, Toichiro Asada, voted against the widely expected 25 bps hike (to 1%), with the rate decision passing by a 7-1 vote. The sole dissenting member argued that downside risks to production and employment from the Middle East situation outweighed upside risks to prices, advocating for maintaining the current policy guidance.
"To have the yen depreciation trend fade, we think the BoJ’s guidance needs to convince market participants that either its rate hikes will be faster than once every six months or that its terminal policy rate target will be higher than 1.50%," said Alex Loo, a senior Asia economist at TD Securities in Singapore.
Despite the BoJ's gradual increase in borrowing costs, the yen remains under persistent pressure. Just last week, the yen hit its weakest level against the dollar since April, despite Japan's record currency market intervention.
The BoJ also stated it would maintain its monthly government bond purchases at around 2 trillion yen ($12.5 billion) from April 2027, signaling a halt to its tapering pace. "This indicates the central bank is still cautious in tightening policy, unwilling to be too aggressive, and preferring balance sheet normalization over rate normalization," noted Tai Hui, chief market strategist for Asia-Pacific at J.P. Morgan Asset Management.
Influenced by inflation concerns stemming from US-Iran tensions and the BoJ's cautious stance, Japanese government bond yields had already climbed to multi-year highs last month. Strategist Garfield Reynolds noted that the presence of a dissenting vote in this hike, along with the policy statement hinting that policymakers may take time to assess the economic situation, could heighten trader anxiety that the BoJ will fall further behind the curve.
There is uncertainty about how the central bank will communicate its policy decision at the press conference scheduled for 3:30 p.m. Beijing time, as Governor Kazuo Ueda was absent from this meeting due to illness. Saxo Markets Chief Investment Strategist Charu Chanana suggested markets might be sensitive to this, given less familiarity with Deputy Governor Uchida, though he is unlikely to deviate from Ueda's tone.
Any guidance on the pace of the BoJ's next steps will be a key variable for the yen's direction, as the massive interest rate differential between Japan and the US continues to weigh on the currency. Simultaneously, concerns that the BoJ's rate hikes are insufficient in magnitude and too slow have already led some global funds to withdraw from the Japanese government bond market.
Chanana added, "If USD/JPY remains firmly above 160 post-hike, intervention risks will persist – especially as the Fed decision nears, and if a backdrop of dollar softness emerges, it could provide a better window for Japanese authorities to act."
This hike is the first since December last year, with policymakers needing to navigate uncertainties stemming from the Middle East conflict. This week, announcements of a provisional agreement between the US and Iran to reopen the Strait of Hormuz provided some market clarity, but concerns remain about the smooth resumption of oil transport. Any signs of easing geopolitical tensions could give Japanese policymakers a clearer view on when further rate hikes might be needed to control inflation.
Insiders revealed earlier this month that officials believe a further rate hike later this year is possible. However, Prime Minister Sanae Takaichi's preference for accommodative monetary policy is seen as a potential obstacle. "Asada's dissenting vote reinforces the market impression that Takaichi-appointed board members are indeed dovish. Persistent concerns that the BoJ is behind the curve are likely the driving force behind rising yields and a weaker yen," said Rinto Maruyama, senior FX and rates strategist at SMBC Nikko Securities.
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