Group 1 - A series of long-term sovereign bond auctions globally have faced weak demand, raising concerns about the sustainability of government financing plans in countries like the US and Japan [1] - Japan's 30-year bond auction marked the third consecutive weak auction in three weeks, with one demand indicator hitting its lowest level in 2023 [1] - The upcoming US auctions of 10-year and 30-year bonds are under scrutiny due to growing concerns over the expanding fiscal deficit, leading investors to demand higher risk premiums for holding long-term US bonds [1] Group 2 - The market reaction to the auction results was relatively stable, with Japanese long-term bonds continuing to rise, influenced by weak US employment data and expectations of potential Fed rate cuts [3] - Demand fluctuations have prompted some countries to adjust their bond issuance strategies, with Japan seeking market participants' opinions on bond issuance and the UK reducing its long-term gilt issuance to a historical low [3] - The rising global yield trend signals investor concerns over the sustainability of government borrowing at near-zero interest rates, with fears of a repeat of the UK bond market crisis in 2022 [3]