A-share Close: ChiNext Index Rises 0.64% on Shrinking Volume, Nearly 4,100 Stocks Advance Market-Wide

August 20 news, according to Cailian Press, the market rallied then pulled back, with all three major indices briefly turning lower during the session. The combined turnover of Shanghai and Shenzhen markets reached 2.08 trillion yuan, down 431.7 billion yuan from the previous trading day. On the trading front, market hotspots rotated rapidly, with nearly 4,100 stocks rising across the market. By sector, the pharmaceutical and biotech sector saw a collective surge, with vaccines, cellular immunity, recombinant proteins, gene editing, and other segments performing strongly—Anke Bio, CSPC Innovation, Porton Pharma, CanSino Biologics, BiokinTec, and MGI Tech all hit the 20% daily limit. The power grid equipment sector was active, with Fengfan Co. hitting its 8th limit-up in 14 days and Chint Electrics hitting the daily limit. Analog chip concepts trended higher, with Kangsheng Communication and SiRuiPu rising over 10%. Optical fiber concepts rebounded during the session, with Changyingtong touching the 20% limit-up and Tongding Interconnection hitting the limit-up. On the downside, the coal sector pulled back sharply after an initial surge, with Antai Group touching the limit-down.