A股智能电网概念股拉升，保变电气、三变科技涨停

Core Viewpoint - The A-share market has seen a significant rise in smart grid concept stocks, with several companies reaching their daily limit up, indicating strong investor interest in this sector [1]. Group 1: Stock Performance - Dongfang Tower (东方铁塔) and Baobian Electric (保变电气) both increased by 10%, while Sanbian Technology (三变科技) rose by 9.98%, reflecting a robust performance among smart grid stocks [1][2]. - New Link Electronics (新联电子) previously hit the limit up, and other companies such as China West Electric (中国西电) and Tebian Electric (特变电工) also experienced gains, showcasing a broad rally in the sector [1]. Group 2: Market Capitalization and Year-to-Date Performance - The total market capitalization of Dongfang Tower is 285 billion, with a year-to-date increase of 23.96% [2]. - Baobian Electric has a market cap of 255 billion and a year-to-date increase of 31.37% [2]. - Sanbian Technology's market cap stands at 62.21 billion, with a remarkable year-to-date increase of 59.50% [2]. - China West Electric has a market cap of 689 billion and a year-to-date increase of 47.69%, indicating strong market confidence [2].