A股午评：沪指逼近3800点，半导体板块走强

Market Overview - The three major A-share indices collectively rose on the 22nd, with the Shanghai Composite Index increasing by 0.67%, approaching 3800 points, the Shenzhen Component Index rising by 1.32%, and the ChiNext Index up by 2.56% [2] - The North China 50 Index also saw a gain of 0.50% [2] - The total trading volume in the Shanghai and Shenzhen markets reached 15,307 billion yuan, a decrease of 606 billion yuan compared to the previous day [2] Stock Performance - Over 1900 stocks in the market experienced an increase [2] - The semiconductor sector showed strong performance, with stocks like Shengmei Shanghai hitting the daily limit, and Haiguang Information, Hanwha Technology, and Shengke Communication rising over 10% [2] - The securities sector also performed well, with Xinda Securities reaching the daily limit [2] - The CPO sector saw gains, with Fangzheng Technology and Zhishang Technology hitting the daily limit [2] - Conversely, the dairy sector weakened, with Keta Bio falling over 4% [2] - The gas sector also declined, with Hongtong Gas dropping over 3% [2]