By Rocky Swift

Japanese government bond (JGB) yields rose for a second straight session on Tuesday as inflation concerns and a soft yen weighed on sentiment.

Here are a few details:

  • The benchmark 10-year JGB yield (JP10YTN=JBTC) climbed 4.5 basis points (bps) to 2.675%, set for the highest closing level since June 11. The 5-year yield (JP5YTN=JBTC) added 1.5 bps to 1.885%. Yields move inversely to bond prices.

  • U.S. Treasury yields edged higher overnight as crude prices advanced amid Middle East tensions and ahead of key U.S. jobs data. The yen fell to the 162-per-dollar level on Tuesday, the weakest point since 1986.

  • With the yen trading at a 40-year low, "concerns are likely to grow over the risk of inflation exceeding expectations due to the Bank of Japan's delay in raising interest rates further," Hiroshi Watanabe, a senior economist at Sony Financial Group, said in a note.

  • The 2-year JGB rallied after an auction of the notes showed an increase in demand compared to the previous sale in May. The 2-year yield (JP2YTN=JBTC), the one most sensitive to BOJ rates, slid 4 bps to 1.355%, extending its decline to four days.

  • Prime Minister Sanae Takaichi's administration appointed Ayano Sato, seen as an advocate of loose monetary policy, as a central bank board member on Tuesday.

  • "The market is closely monitoring the relationship between the government and the Bank of Japan," Keisuke Tsuruta, a senior bond strategist at Mitsubishi UFJ Morgan Stanley Securities, said in a note. "Against this backdrop, attention is focused on what views Sato will express regarding further interest rate hikes and expansionary fiscal policy."

  • The yield on the 20-year JGB (JP20YTN=JBTC) advanced 9 bps to 3.640%, while the 30-year yield (JP30YTN=JBTC) gained 11 bps to 3.940%. The yield on the 40-year JGB (JP40YTN=JBTC), Japan's longest tenor, increased 6.5 bps to 3.770%.

($1 = 162.2300 yen)