Japan's super-long bond yields are rising after weak purchases by the Bank of Japan

The cool reaction to the Bank of Japan's purchase of 25-year bonds has affected moods. As a result, on Monday the yields of Japan's super-long government bonds increased greatly from a two-week minimum at the previous session.

The 20-year JGB increased in yields by 5 basis points to 1.100%. The 30-year JGB increased in yields by 5 basis points to 1.485%.

On Friday, super-long bonds fell in yields to a two-week minimum. The reason was a sign of slowing inflation in the U.S., which gave hopes for a less aggressive Federal Reserve System policy in raising interest rates.

The Bank of Japan made bond purchases in three tranches. The maturities of the transactions ranged from one year to more than 25 years.

A market participant from a domestic brokerage firm said that the results of the 25-year bonds were weak.