日本10年期国债收益率创2008年来新高 日央行或出手干预

Core Viewpoint - Japan's bond market is experiencing a significant sell-off due to concerns over fiscal conditions and persistent inflation, leading to a surge in long-term government bond yields to their highest levels in a decade [1][2]. Group 1: Bond Yield Trends - On August 21, Japan's long-term government bond yields rose sharply, with the 10-year yield reaching 1.61%, the highest since October 2008 [1]. - The 20-year bond yield hit 2.655%, the highest since 1999, while the 30-year yield approached its historical high of 3.2% [1]. - As of 6 PM Beijing time, the 10-year yield was at 1.616%, the 20-year yield at 2.649%, and the 30-year yield at 3.197% [1]. Group 2: Factors Influencing Bond Yields - The primary driver of rising yields is investor expectations of new fiscal stimulus measures following the ruling coalition's loss in the July Senate elections, which will increase Japan's already high debt levels [1][3]. - Persistent inflation in Japan has raised the likelihood of interest rate hikes by the Bank of Japan, further pushing up bond yields [2][4]. - A significant drop in demand for Japanese bonds has been noted, with net purchases of 10-year and longer bonds by overseas investors falling to 480 billion yen (approximately 3.3 billion USD) in July, just one-third of June's purchases [2][4]. Group 3: Market Dynamics and Future Outlook - The bond market has faced a "disastrous" decline in demand, attributed to rising inflation and potential fiscal stimulus, which increases the burden on Japan's already high leverage [3][6]. - Despite high yields, overseas investors had been attracted to Japanese bonds earlier this year, with net purchases reaching 9.2841 trillion yen in the first seven months, the highest since records began in 2004 [4]. - However, the trend has reversed since July, with concerns over fiscal imbalances and the Bank of Japan's gradual exit from the bond market contributing to reduced demand [4][6]. Group 4: Potential Interventions - Experts suggest that if the sell-off continues, the Bank of Japan may intervene to stabilize the bond market, potentially through liquidity injections or adjustments to its quantitative tightening strategy [7]. - The future trajectory of long-term bond yields will depend on monetary policy direction, fiscal expansion pace, and global interest rate environments [7].