Group 1 - The stock of Rigol Navigation (688282) closed at 62.68 yuan on October 13, with a significant increase of 18.82% and a trading volume of 364 million yuan [1] - The stock was listed on the daily trading list due to its closing price increase of 15% or more [1] - The top five trading departments accounted for a total transaction amount of 216 million yuan, with a net buying amount of 128 million yuan [1] Group 2 - Among the top five buying departments, two were institutional special seats, with buying amounts of 70.86 million yuan and 60.65 million yuan respectively [2] - The selling departments included one institutional special seat, which sold 6.53 million yuan, while the total selling amount from the departments was 37.29 million yuan [2] - Overall, institutional special seats had a net buying of 125 million yuan for the stock on that day [1][2]