港口航运板块拉升，海航科技触及涨停

Group 1 - The port and shipping sector has seen a significant rise, with HNA Technology (600751) hitting the daily limit up, indicating strong investor interest [1] - Chongqing Port (600279) has increased by over 6%, reflecting positive market sentiment towards port stocks [1] - Other companies such as Nanjing Port (002040), Xiamen Port Authority (000905), and Phoenix Shipping (000520) have also experienced upward movement, suggesting a broader trend in the industry [1] Group 2 - There is a notable influx of dark pool funds into these stocks, indicating increased trading activity and potential investment interest [1]