对delta毒株引发的疫情可能会减缓全球复苏的担忧正在推低全球债券收益率。10年期美国国债收益率6月份跌破1.50%，而日本国债债收益率同样走低，目前正在逼近0%．Japanese government bond purchases by overseas funds hit the second-highest level on record in June as the spread of novel coronavirus's delta variant spurred demand for safe-haven assets.
Foreign investors bought a net 4.06 trillion yen ($37 billion) of Japanese government bonds last month, just below the record of 4.42 trillion yen set in December 2018, according to the Japan Securities Dealers Association.
"although Japanese government bonds are not attractive in themselves, they are included in the global fund index and may benefit from accelerated global bond purchases," said Sumitomo Mitsui.Said Hui Yamazaki, a senior fund manager at Dex Asset Management in Tokyo. "rising stock market profit-taking could also lead to the flow of money into bonds."
Fears that an outbreak caused by the delta strain could slow the global recovery are driving down global bond yields. The yield on 10-year US Treasuries fell below 1.50% in June, while Japanese bond yields also fell and are now approaching 0%.
Ms Yamazaki of Sumitomo Mitsui says purchases of Japanese government bonds may also have increased because foreign funds are underpriced in Japanese bonds.
