Zheng Xing Xing Ye Ri Bao·2025-10-21 08:28Core Insights - The communication equipment sector experienced a significant increase of 5.9% on October 21, with Shijia Photon leading the gains [1] - The Shanghai Composite Index closed at 3916.33, up 1.36%, while the Shenzhen Component Index closed at 13077.32, up 2.06% [1] Stock Performance - Shijia Photon (688313) saw a closing price of 67.71, with a rise of 15.00% and a trading volume of 434,100 shares, amounting to a transaction value of 2.768 billion [1] - Xinyi Technology (300502) closed at 365.42, up 10.99%, with a trading volume of 614,700 shares, resulting in a transaction value of 21.641 billion [1] - Zhongji Xuchuang (300308) closed at 441.50, increasing by 9.55%, with a trading volume of 565,200 shares [1] - Other notable performers included XD Dekeli (688205) with a 7.89% increase, Changfei Fiber (601869) up 6.86%, and Lian Te Technology (301205) up 6.55% [1] Fund Flow Analysis - The communication equipment sector saw a net inflow of 6.202 billion in main funds, while retail funds experienced a net outflow of 2.659 billion [2] - Major stocks like Xinyi Technology and Zhongji Xuchuang had significant net inflows from main funds, indicating strong institutional interest [3] - Conversely, retail investors showed a tendency to withdraw from several stocks, reflecting a cautious sentiment in the market [3]