A股光刻机概念股走强，永新光学涨停

Group 1 - The A-share market saw a strong performance in photolithography machine concept stocks, with significant gains reported [1] - Wavelength Optoelectronics surged nearly 18%, while Yongxin Optical reached a daily limit up [1] - Maolai Optics increased by over 7%, and Blue Eagle Equipment rose by 5% [1] - Other companies such as Kaimete Gas, New Lai Materials, and Su Da Weige all experienced gains exceeding 4% [1]