央行连续多日大额净投放，债市情绪持续修复，30年国债ETF涨0.09%

Group 1: Market Overview - The bond market showed slight gains in early trading on August 21, with the 30-year Treasury ETF rising by 0.09% and the 30-year Treasury futures contract increasing by 0.28% to a price of 115.8 yuan [1] - The central bank conducted a 7-day reverse repurchase operation of 253 billion yuan at a stable interest rate of 1.40%, while major interest rates for government bonds generally rose [1] Group 2: Monetary Policy Impact - The recent recovery in bond market sentiment is attributed to the central bank's significant net injections since August 15, with a notable operation of 616 billion yuan in reverse repos, resulting in a net injection of 497.5 billion yuan [2] - The market currently perceives a "stock-bond seesaw effect" as a dominant factor, with equity market fluctuations being the largest variable affecting the bond market in the absence of major positive support [2] Group 3: Investment Products - The Pengyang 30-year Treasury ETF (511090) is the first ETF tracking the 30-year Treasury index, offering T+0 trading attributes, allowing investors to capitalize on short-term price movements and adjust portfolio duration [3] - This product serves as a high-elasticity cash management tool and duration adjustment tool, making it attractive for investors, especially in a low-interest-rate environment [3]