半导体板块12月1日涨1.78%，北京君正领涨，主力资金净流入43.23亿元

Group 1 - The semiconductor sector increased by 1.78% on December 1, with Beijing Junzheng leading the gains [1] - The Shanghai Composite Index closed at 3914.01, up 0.65%, while the Shenzhen Component Index closed at 13146.72, up 1.25% [1] - Notable gainers in the semiconductor sector included Beijing Junzheng, which rose by 20.00% to a closing price of 95.28, and Hangyu Micro, which increased by 14.75% to 17.43 [1] Group 2 - The semiconductor sector experienced a net inflow of 4.323 billion yuan from institutional investors, while retail investors saw a net outflow of 2.483 billion yuan [2] - Major stocks with significant net inflows included Zhaoyi Innovation with 11.0414 million yuan and Beijing Junzheng with 5.43 million yuan [3] - Conversely, Dongxin Co. faced a decline of 7.54%, closing at 120.20, indicating a notable drop in investor interest [2]