Japan benchmark bond yield extends rise after hitting 30-year high

TOKYO, July 9 (Reuters): The benchmark 10-year Japanese government bond yield hit a 30-year high on Thursday, driven by concerns over inflation from renewed tensions in the Middle East and Japan's fiscal health, while a five-year JGB auction was relatively firm as expected.
The 10-year JGB yield rose 3.5 basis points to 2.900 per cent, the highest since September 1996. It also marked its ninth straight day of gains, the longest streak in 19 years. Yields move inversely to bond prices.
Analysts saw the outcome of five-year note auction as moderately firm. The auction's bid-to-cover ratio, a measure of demand, was 3.43 times, compared with 3.11 times at the previous sale.
"When yields are up across the curve, investors want to buy shorter-dated bonds to avoid risks," said Miki Den, the senior Japan rate strategist at SMBC Nikko Securities.
"But the level of the yield on the five-year bonds is not high enough given ongoing inflation. That capped demand for the auction," he added.
The five-year yield rose 0.5 bps to 1.990 per cent, easing slightly after the auction. The two-year yield , the one most sensitive to the Bank of Japan's policy rates, increased 1.5 bps to 1.445 per cent.
Oil prices jumped more than 1 per cent after US President Donald Trump said he thought a tentative deal to end the war with Iran was over, pushing US Treasury yields to a multi-week high.
Longer-dated JGBs, more sensitive to inflation and fiscal-risk premiums, came under pressure. The 20-year JGB yield climbed 2 bps to 3.890 per cent.