TOKYO, Sept 19 (Reuters) - Japanese government bond prices dropped on Wednesday, tracking a slide in U.S. Treasuries as well as caution ahead of a 20-year JGB auction.
Ten-year JGB futures fell 0.04 point to 150.16 while the 10-year benchmark cash JGB yield rose 0.5 basis point to 0.115 percent.
The 10-year JGB yield touched a six-week high of 0.120 percent in the session, as the 10-year U.S. yield hit a four-month high above 3.05 percent.
The 20-year JGB yield and the 30-year JGB yield both rose 0.5 basis point to 0.620 percent and to 0.850 percent, respectively.
The benchmark two-year JGB yield rose 0.5 basis point to -0.110 percent.
The Bank of Japan maintained its policy on Wednesday as expected.
Reporting by Tokyo Markets Team; Editing by Amrutha Gayathri