英集芯跌2.75%，成交额3.28亿元，今日主力净流入-4835.49万

Core Viewpoint - The company, Yingjixin Technology Co., Ltd., is experiencing a decline in stock price and trading volume, while maintaining a focus on automotive electronics and consumer electronics sectors, particularly in power management and fast-charging protocol chips. Group 1: Company Overview - Yingjixin was established on November 20, 2014, and went public on April 19, 2022, specializing in the research and sales of power management and fast-charging protocol chips [7] - The company's main business revenue composition includes power management (65.15%), mixed-signal SoC (22.02%), battery management (12.33%), and others (0.49%) [7] - As of September 30, 2025, the company reported a revenue of 1.169 billion yuan, a year-on-year increase of 14.16%, and a net profit of 114 million yuan, up 28.54% year-on-year [8] Group 2: Product Development and Market Position - The company has successfully developed automotive-grade charging chips that meet AEC-Q100 standards and has begun mass production for domestic and international automotive manufacturers [2] - Yingjixin's TWS earphone charging case chip offers a highly integrated power solution, reducing design complexity and material costs for customers [2] - The company is recognized as a "specialized and innovative" small giant enterprise, indicating its strong market position and innovation capabilities [3] Group 3: Market Activity and Financial Analysis - On December 3, the stock price of Yingjixin fell by 2.75%, with a trading volume of 328 million yuan and a market capitalization of 10.056 billion yuan [1] - The main net inflow of funds was negative at 48.35 million yuan, indicating a reduction in institutional holdings over the past three days [4][5] - The average trading cost of the stock is 21.82 yuan, with a current price near the support level of 22.90 yuan, suggesting potential volatility [6]