A股收评：创业板指全天收跌0.66% 油气板块午后异军突起

Market Overview - The A-share market experienced a mixed performance with the three major indices showing fluctuations, leading to a collective decline in the afternoon session [1] - The Shanghai Composite Index fell by 0.22%, the Shenzhen Component Index decreased by 0.48%, and the ChiNext Index dropped by 0.66% [1] - The total trading volume in both markets remained above 1.5 trillion yuan, with nearly 3,400 stocks closing in the red [1] Sector Performance - The military industry sector maintained strong performance throughout the day, with stocks like Aerospace Software and North Navigation hitting the daily limit [1] - The securities sector showed mixed results, with Guosheng Financial Holdings reaching the daily limit while Dongfang Fortune saw a trading volume exceeding 20 billion yuan but closed down over 3% [1] - The oil and gas sector surged in the afternoon, with Zhun Oil Co. hitting the daily limit [1] - The innovative drug sector led the market decline, with Rongchang Bio falling over 18% [1]