财政扩张担忧引发日本长债猛烈抛售，20年期收益率飙升至1999年来新高

Core Viewpoint - Concerns over Japan's fiscal situation have intensified, leading to a significant sell-off of long-term government bonds, with the 20-year bond yield reaching its highest level in 25 years [1] Group 1: Market Reactions - The 30-year bond yield increased by 5 basis points to 3.26%, while the 40-year bond yield rose by 5.5 basis points to 3.6%, reflecting a global sensitivity among investors towards government fiscal discipline [1] - The sell-off in Japanese bonds mirrors a recent downturn in U.S. and U.K. bond markets, indicating a broader trend of investor caution regarding government fiscal policies [1] Group 2: Economic Stimulus Focus - Traders are closely monitoring the actual spending scale of Prime Minister Kishida's economic plan, especially after GDP data indicated economic contraction, which provides justification for stimulus measures [3] - The upcoming economic stimulus plan's specifics are a central uncertainty driving the current bond sell-off, with reports suggesting the government may consider a supplementary budget exceeding last year's 13.9 trillion yen [4] Group 3: Investor Sentiment - Investors are cautious about the scale of the government's economic stimulus plan, as uncertainties regarding its impact on government bond issuance are exerting pressure on long-term bonds [5] - Goldman Sachs noted that rising concerns over a potentially larger-than-expected stimulus plan are causing Japan's fiscal risk premium to increase, putting pressure on long-term sovereign bonds and the yen [5] - The current political context and market sentiment have heightened concerns ahead of the upcoming 20-year bond auction, with participants keenly observing the auction results to gauge demand for Japanese long-term bonds following the yield surge [5]