Smartsens Technology (Shanghai) (SH:688213) Xin Lang Cai Jing·2025-09-04 07:46Group 1 - The core viewpoint of the news is that Sitwei's stock has experienced a significant decline, with a 5.06% drop on September 4, leading to a cumulative decline of 9.99% over four consecutive days [1] - Sitwei (Shanghai) Electronic Technology Co., Ltd. specializes in the research, design, and sales of high-performance CMOS image sensor chips, with 100% of its revenue derived from chip sales [1] - As of the report, Sitwei's stock price is 95.41 yuan per share, with a total market capitalization of 38.34 billion yuan and a trading volume of 7.81 billion yuan [1] Group 2 - Chang'an Fund has a significant holding in Sitwei, with its Chang'an Yuteng Mixed A Fund (005588) holding 3,000 shares, representing 0.35% of the fund's net value, ranking as the seventh largest holding [2] - The fund has incurred a floating loss of approximately 15,300 yuan today, with a total floating loss of 33,500 yuan during the four-day decline [2] - The Chang'an Yuteng Mixed A Fund was established on June 6, 2018, with a current scale of 8.53 million yuan and a year-to-date return of 4.38%, ranking 6,697 out of 8,180 in its category [2]