军工电子板块12月19日涨1.16%，四创电子领涨，主力资金净流入2.32亿元

Group 1 - The military electronics sector increased by 1.16% on December 19, with Sichuan Chuang Electronics leading the gains [1] - The Shanghai Composite Index closed at 3890.45, up 0.36%, while the Shenzhen Component Index closed at 13140.22, up 0.66% [1] - Key stocks in the military electronics sector showed significant price increases, with Sichuan Chuang Electronics rising by 10.02% to a closing price of 31.19 [1] Group 2 - The military electronics sector experienced a net inflow of 232 million yuan from institutional investors, while retail investors contributed a net inflow of 307 million yuan [2] - Major stocks like Aerospace Development saw a net inflow of 286.6 million yuan from institutional investors, indicating strong interest [3] - Retail investors showed a mixed response, with significant outflows from stocks like Sichuan Chuang Electronics, which had a net outflow of 86.5 million yuan from retail investors [3]