沪指九连阳微涨，商业航天概念持续走强

Market Overview - The Shanghai Composite Index experienced a slight increase, marking its ninth consecutive day of gains, while the Shenzhen Component Index and the ChiNext Index saw declines of 0.49% and 0.66% respectively [1] - The total trading volume in the Shanghai and Shenzhen markets reached 2.14 trillion yuan, a decrease of 209 billion yuan compared to the previous trading day [1][2] Sector Performance - Over 3,300 stocks in the market declined, indicating a broad market weakness [1] - The robotics sector showed strong activity, with stocks like Aowei New Materials and Boke Technology hitting the daily limit and reaching historical highs [1] - The commercial aerospace sector continued its strong performance, with Shenjian Co. achieving an eight-day limit increase, and several other stocks like Goldwind Technology and Leike Defense also hitting the daily limit [1] - The carbon fiber sector was active, with Jilin Chemical Fiber and Heshun Technology both reaching the daily limit [1] - Conversely, the battery, dairy, and electric power sectors faced significant declines, with the battery sector experiencing a drop, particularly Huasheng Lithium Battery, which fell over 7% [1] Index Performance - The Shanghai Composite Index closed at 13,538.89, up 0.04%, while the Shenzhen Component Index closed at 3,965.43, down 0.48% [2] - The ChiNext Index closed at 1,638.46, down 0.25% [2] - The total number of declining stocks was 3,314, while 2,005 stocks rose [3]