港口航运股异动拉升 南京港午后涨停

Group 1 - The core viewpoint of the article highlights a significant surge in port and shipping stocks, particularly with Nanjing Port hitting the daily limit increase [1] - Nanjing Port experienced a limit-up increase, indicating strong investor interest and confidence in the stock [1] - Other companies in the sector, such as China National Offshore Oil Corporation (CNOOC), Lianyungang, and several others, also saw notable gains, with increases exceeding 5% [1]