科创债ETF国泰（551880）连续5日净流入超4亿元，科创债ETF荟聚T+0、可质押、低费率等优势

Group 1 - The core viewpoint is that the supply side of the market is expected to see continued expansion of the Sci-Tech Bond ETF, driven by demand from pension funds and wealth management institutions [1] - The Sci-Tech Bond ETF (551880) is highlighted for its unique investment value, combining high-grade credit bonds to mitigate short-term market volatility with policy-driven benefits, offering long-term growth opportunities in the technology innovation sector [1] - The advantages of the Sci-Tech Bond ETF include T+0 trading, pledgeability, and low fees, which are expected to sustain market demand for these financial products [1]