上纬新材跌2.01%，成交额3.32亿元，主力资金净流出3819.11万元

Group 1 - The core viewpoint of the news is that Shangwei New Materials has experienced significant stock price fluctuations and trading activity, with a notable increase in stock price this year, but recent declines in the short term [1][2] - As of December 23, the stock price of Shangwei New Materials was 104.00 yuan per share, with a market capitalization of 41.95 billion yuan and a trading volume of 3.32 billion yuan [1] - The company has seen a year-to-date stock price increase of 1468.15%, with a recent 5-day increase of 7.88% and a 20-day decrease of 12.12% [1] Group 2 - Shangwei New Materials specializes in the research, production, and sales of environmentally friendly high-performance corrosion-resistant materials, materials for wind turbine blades, and new composite materials [2] - The company's revenue composition includes 46.26% from environmentally friendly high-performance corrosion-resistant materials, 40.07% from wind turbine blade materials, and 5.69% from new composite materials [2] - As of September 30, the number of shareholders increased by 238.94% to 19,700, while the average circulating shares per person decreased by 70.50% [2] Group 3 - Since its A-share listing, Shangwei New Materials has distributed a total of 77.83 million yuan in dividends, with 45.57 million yuan distributed in the last three years [3]