国城矿业跌停，龙虎榜上机构买入3119.90万元，卖出6147.28万元

Group 1 - The stock of Guocheng Mining experienced a limit down today, with a turnover rate of 2.71% and a transaction amount of 519 million yuan, showing a fluctuation of 10.27% [2] - Institutional investors net sold 30.27 million yuan, while the Shenzhen Stock Connect saw a net purchase of 47.07 million yuan [2] - The stock was listed on the Shenzhen Stock Exchange due to a daily decline deviation of -8.66%, with institutional proprietary seats net selling 30.27 million yuan and the Shenzhen Stock Connect net buying 47.07 million yuan [2] Group 2 - The latest margin trading data shows that the stock's margin balance is 258 million yuan, with a financing balance of 256 million yuan and a securities lending balance of 1.63 million yuan [3] - Over the past five days, the financing balance increased by 19.64 million yuan, representing an increase of 8.31%, while the securities lending balance rose by 0.44 million yuan, an increase of 36.94% [3] - The top five trading departments for buying and selling on November 4 included significant transactions from the Shenzhen Stock Connect and various institutional proprietary seats [3]