股价跌近八成！困在下行周期里的东微半导何时挽回颓势

Core Viewpoint - Dongwei Semiconductor (688261), known as the "first stock of charging pile chips," has seen its stock price plummet nearly 80% from a peak of 179.27 yuan to 38.63 yuan due to the downturn in the power semiconductor industry and increased competition [1] Company Performance - Dongwei Semiconductor was established in 2008 and operates as a fabless manufacturer of power semiconductors, with products widely used in various sectors including 5G base stations, data centers, and electric vehicle charging [1] - The company experienced significant growth from 2020 to 2022, with 2022 revenues reaching 1.116 billion yuan and net profits of 284 million yuan, marking year-on-year increases of 42.72% and 93.57%, respectively [4] - However, in 2023, the company reported a revenue decline of 12.86% to 973 million yuan, with net profit dropping over 50% to 140 million yuan [7][8] Competitive Landscape - Dongwei Semiconductor's gross margin has significantly decreased from 33.96% in 2022 to 22.73% in 2023 and further to 14.29% in 2024, indicating a loss of competitive edge compared to peers [8][9] - The company's inventory turnover efficiency has worsened, with inventory turnover days increasing from 56.31 days in 2021 to 146.74 days in 2024, leading to substantial asset impairment losses [11] New Business Development - Despite ongoing R&D investments and attempts to diversify product offerings, new business lines such as Super Silicon MOSFET and SiC devices have contributed minimally to overall revenue, maintaining a combined share of only about 4% from 2021 to 2024 [13][14] - The SiC market is expected to grow significantly, but Dongwei Semiconductor faces challenges due to its lack of technological advantages and the competitive landscape dominated by established players [17][19]