- In May, Japan's corporate goods price index rose by 6.3% year-on-year, exceeding market expectations. This increase was mainly driven by rising energy costs due to Middle East conflicts, indicating that domestic inflationary pressures continue to intensify.
- The yield on the benchmark 10-year Japanese government bond rose by 3 basis points to 2.695% on Wednesday. Meanwhile, Japan's Ministry of Finance will auction 600 billion yen of 30-year super-long-term government bonds later today.
- As signs of inflation become more apparent, market expectations for a rate hike by the Bank of Japan have strengthened, with investors generally adopting cautious strategies ahead of next week's central bank policy meeting.
Energy Costs Drive Up Wholesale Prices
The latest official data from Japan shows that the corporate goods price index in May increased significantly by 6.3% compared to the same period last year, surpassing the expectations of most economists. The data reflects the profound impact of geopolitical conflicts on global supply chains, particularly the high import energy prices caused by instability in the Middle East, which are gradually being transmitted to Japan's domestic production sector. Market analysts point out that if wholesale prices remain high, they may further pass on to the consumer side, putting more pressure on the Bank of Japan to adjust its monetary policy.
Yields Rise Across the Board, Curve Steepens
Stimulated by inflation data exceeding expectations, Japan's government bond market is under pressure, with yields across all maturities rising to varying degrees. In addition to the benchmark 10-year bond yield rising by 3 basis points to 2.695%, medium- and long-term as well as super-long-term bond yields also generally increased. The 20-year Japanese government bond yield rose by 3 basis points to 3.590%, and the 30-year bond yield increased by 2.5 basis points to 3.890%. In the short-term market, the 2-year bond yield, which is most sensitive to policy rates, slightly rose by 0.5 basis points to 1.420%, while the 5-year bond yield increased by 1.5 basis points to 1.940%. Only the longest 40-year bond yield remained unchanged.
Super-Long-Term Bond Auction Faces Test
Later today, Japan's Ministry of Finance plans to auction approximately 600 billion yen, equivalent to about 3.74 billion US dollars, of 30-year Japanese government bonds. Given the relatively low overall level of Japanese government bond yields recently, coupled with the latest dynamics of the yield curve, the market holds a cautious outlook on the demand prospects for this super-long-term bond auction. Analysts at Barclays Bank noted in their latest report that, given the recent easing of fiscal concerns, the auction results for the 30-year bond are expected to be moderate to lukewarm, with little likelihood of strong oversubscription.
Expectations Revised Again Ahead of Policy Meeting
In the sensitive window period before next week's Bank of Japan policy meeting, bond market investor sentiment appears particularly volatile. Although media reports on Tuesday suggested that the Bank of Japan is considering maintaining its current bond purchase scale after the next fiscal year, potentially pausing the reduction of bond purchases, this news briefly triggered a rebound in bond prices. However, Wednesday's inflation data exceeding expectations once again reversed market sentiment. If core inflation continues to rebound, market pricing may be reassessed, and the Bank of Japan may be forced to revise its policy path.
