科创板收盘播报：科创综指跌1.25% 近七成个股收跌

Market Performance - The two major indices of the Sci-Tech Innovation Board opened higher on September 19 but experienced a decline, closing significantly lower. The Sci-Tech 50 Index closed at 1362.65 points, down 1.28%, with a total trading volume of approximately 101.3 billion yuan. The Sci-Tech Composite Index closed at 1622.55 points, down 1.25%, with a total trading volume of about 263.3 billion yuan, showing a significant decrease in trading volume compared to the previous trading day [1][2]. Stock Performance - Nearly 70% of the stocks on the Sci-Tech Innovation Board declined on the same day. Stocks in the sectors of components, communication equipment, environmental protection, aviation, mineral products, and chemical raw materials showed a mixed performance, while other sub-sectors generally experienced more declines than gains [1]. Individual Stock Highlights - In individual stock performance, Fuxin Technology reached a limit-up of approximately 20%, leading in gains, while Feng'an Technology saw a decline of 10.58%, marking the largest drop [3]. Trading Activity - In terms of trading volume, SMIC had a trading volume of 17.944 billion yuan, ranking first, while Jindalai had a trading volume of 1.43757 million yuan, ranking last. Regarding turnover rates, Huafeng Technology had a turnover rate of 20.55%, leading the board, while Bairen Medical had a turnover rate of 0.33%, ranking last [4].