A股近4500家飘绿，创业板指半日跌超2%，智能驾驶、零售概念逆势走强

Market Overview - On December 16, the A-share market experienced a volatile adjustment with all three major indices declining [1] - By midday, the Shanghai Composite Index fell by 1.22% to 3820.85 points, the Shenzhen Component Index dropped by 1.88% to 12866.09 points, and the ChiNext Index decreased by 2.35% to 3063.97 points [1] - The total number of rising stocks was 917, while 4467 stocks declined, with 33 stocks hitting the daily limit up [1] - The trading volume for the Shanghai and Shenzhen markets was approximately 1.12 trillion yuan, a decrease of 606 billion yuan compared to the previous trading day [1] Sector Performance - The retail sector remained active, driving the market with notable performances from companies like Baida Group, which achieved a four-day limit up, and Hongqi Chain and Guangbai Shares, both of which saw two consecutive limit ups [3] - The smart driving concept stocks surged against the trend, with over 10 stocks, including Zhejiang Shibao and Suoling Shares, hitting the limit up [3] - The digital currency sector also showed strength, with stocks like Cuiwei Shares and Aerospace Information reaching the limit up [3] Declining Sectors - The film and cinema sector experienced a significant downturn, with Bona Film Group facing two consecutive limit downs [3] - The Hainan sector saw a decline, with Hainan Ruize dropping over 9% [3] - Overall, the leading gainers included retail, dairy, electronic rearview mirrors, and community group buying concepts, while the lagging sectors were precious metals, film and cinema, Hainan, and superconducting concepts [3]