沪指一度突破4100点，三市成交额放量超3000亿元，关注A500ETF易方达（159361）等产品投资机会

Market Overview - On January 9, A-shares saw a collective rise in the three major indices, with the Shanghai Composite Index increasing by 0.3% and briefly surpassing 4100 points. The total market turnover reached approximately 2.08 trillion yuan, an increase of over 300 billion yuan compared to the previous day [1]. Sector Performance - The leading sectors included AI applications, commercial aerospace, smart healthcare, oil and gas exploration and services, computing power leasing, retail, small metals, cross-border payments, and controllable nuclear fusion, all showing significant gains [1]. - Conversely, sectors such as banking, glyphosate, airport and shipping, brain-computer interfaces, cement, and agriculture lagged behind in performance [1]. Index Performance - The CSI 300 Index rose by 0.1%, with a rolling price-to-earnings ratio of 14.3 times, placing it in the 67.3% valuation percentile since its inception in 2005 [2]. - The CSI A500 Index increased by 0.4%, with a rolling price-to-earnings ratio of 17.3 times, ranking in the 76.4% valuation percentile since its launch in 2004 [2]. - The ChiNext Index also saw a rise of 0.1%, with a rolling price-to-earnings ratio of 42.2 times, which is in the 39.1% valuation percentile since its establishment in 2010 [2]. - The STAR Market 50 Index increased by 0.1%, with a rolling price-to-earnings ratio of 173.1 times, placing it in the 97.4% valuation percentile since its launch in 2020 [3]. - The Hang Seng China Enterprises Index rose by 0.04%, with a rolling price-to-earnings ratio of 10.5 times, ranking in the 64.1% valuation percentile since its inception in 2002 [4].