马年开门红！沪指放量，涨0.87%，全市场超百股涨停

Market Overview - The market experienced a strong opening on February 24, with the ChiNext Index rising over 2% at one point. The total trading volume in the Shanghai and Shenzhen markets reached 2.2 trillion, an increase of 219.4 billion compared to the previous trading day [1]. Index Performance - By the end of the trading session, the Shanghai Composite Index rose by 0.87%, the Shenzhen Component Index increased by 1.36%, and the ChiNext Index gained 0.99%. Over 4,000 stocks in the market saw an increase, with 109 stocks hitting the daily limit up [1]. Sector Performance - The oil and gas sector saw collective gains, with stocks such as Tongyuan Petroleum, Zhun Oil, Shandong Molong, and CNOOC Services hitting the daily limit up [1]. - The chemical sector experienced a surge, with Meibang Co. achieving four consecutive limit ups, and stocks like Hongbaoli, Hongqiang Co., Chengxing Co., and Jinpu Titanium hitting the daily limit up [1]. - The cultivated diamond concept saw significant growth, with Sifangda reaching a limit up of 20%, and Huanghe Xuanfeng also hitting the daily limit up [1]. - The fiberglass concept remained active, with International Composites rising over 4% and achieving two limit ups in four days, setting a new historical high [1].