The benchmark 10-year Japanese Government Bond (JGB) yield rose by 2.5 basis points to 2.740%, marking its highest level since May 22. This increase comes as investors exhibit caution ahead of a 30-year bond auction scheduled for Wednesday and amid expectations of a potential policy rate hike by the Bank of Japan (BOJ) at its June meeting.
The upward pressure on JGB yields is partly driven by global trends, with U.S. Treasury and euro zone yields also rising due to persistent inflation pressures and anticipated central bank tightening. The 20-year JGB yield advanced by 3 basis points to 3.665%, while the 30-year yield increased by 3 basis points to 3.965%. The two-year yield remained unchanged at 1.415%, and the five-year yield added 1 basis point to 1.950%.
Japan's Economic Revitalisation Minister Minoru Kiuchi expressed hope that the BOJ would collaborate closely with the government to achieve its 2% inflation target. The BOJ's shift to a more hawkish tone is influenced by energy shocks from escalating U.S.-Iran tensions, which have pushed oil prices higher and increased inflation risks.
“The recent rise in interest rates is driven more by inflation concerns and fears that the Bank of Japan is lagging behind in responding to price pressures than by supply-and-demand factors.”
Takayuki Miyajima, Senior Economist at Sony Financial Group
Interest rate swaps data through Monday indicated a 93% probability of a 25 basis point rate hike by the BOJ, according to Tokyo Tanshi. This anticipated move reflects the BOJ's response to inflation risks exacerbated by the Iran war-driven energy shock.
In India, government bonds faced pressure as higher oil prices, driven by U.S.-Iran tensions, overshadowed recent supportive measures from the Reserve Bank of India aimed at boosting foreign investment in government securities. Higher oil prices impact India's inflation and current account deficit, influencing bond yields.
Background
The developments in the JGB market are significant as they highlight the global interconnectedness of bond markets and the impact of geopolitical tensions on financial markets.
Investors will closely monitor the BOJ's upcoming meeting and the 30-year bond auction for further insights into the direction of JGB yields.



