Japan's Central Bank Raises Key Interest Rate to Highest Level in 31 Years

Central bank chief Shinichi Uchida, however, also warned of risks: "On the other hand, the price increase is broadening, and there is a risk that underlying inflation deviates from our target," he said. The currency guardians assume that core inflation will gradually rise and reach the target level of two percent between the second half of fiscal year 2026 and fiscal year 2027.

Background: Inflation and Wholesale Prices

That companies are already passing on the higher costs was evident in May, when wholesale inflation climbed to a three-year high of 6.3 percent. The price surge at the wholesale level is considered an early indicator that cost pressure could be transmitted to consumer prices.

Uchida was reserved in his comments on the yen. "We always observe currency movements closely," he emphasized. The central bank does not target exchange rates directly with its monetary policy: "However, we participate in monetary policy discussions, as we assume that currency movements have a decisive influence on economic and price developments," he added.

Yen Under Pressure, Markets in Motion

The yen initially strengthened immediately after the decision, but then fell back to 160.29 yen per dollar, thus fluctuating around the 160-yen mark. A level at which the probability of currency interventions is considered elevated.

The interest rate decision prompted mixed reactions in the stock markets. The Nikkei 225 index climbed by up to one percent to a record high of over 70,000 points before paring its gains and closing 0.1 percent higher at 69,404 points.

The chief foreign exchange strategist at the banking group SMBC, Hirofumi Suzuki, assumes that the BOJ will continue to cautiously tighten monetary policy: "Roughly every six to twelve months," the expert said. This would mean the next interest rate step is not expected before late 2026.

NordLB expert Tobias Basse holds a similar assessment. The government appears to be fundamentally rather skeptical of raising key interest rates: "The monetary policymakers will therefore now want to proceed with caution," he said.

Outlook: Cautious Course Expected

This points to a phase of monetary policy stabilization following the historic interest rate hike. However, if inflation rises more strongly than expected, the BOJ could be forced to accelerate its moderate course.

International attention is now focused on the upcoming inflation data as well as possible signals from the Japanese government. In the foreign exchange markets, the question remains whether the 160-yen-per-dollar mark could trigger intervention speculation by the Japanese authorities.

Overall, the decision underscores the turning point in Japanese monetary policy: After decades of extremely low interest rates, the BOJ is gradually approaching a normal monetary policy stance – a process that is likely to influence both the economy and global financial markets.