8月22日，A股再度单边逼空，沪指轻松拿下3800点，科创50暴涨8%，寒武纪、海光信息两大巨头双双 20%涨停，带动GPU、服务器、AIPC概念强势领涨。 6 月以来，寒武纪股价最高涨幅逾 300%，大幅抬升科创板 AI 芯片估值天花板。沐曦股份与摩尔线程则 于 6 月 30 日同日递交科创板招股书，拟分别募资 39.04 亿元和 80 亿元。 市场一度期待寒武纪的"情绪外溢"能让两家后来者坐享高估值，但7月19日的首轮问询显示：监管并未 因板块热度降低盈利及持续经营门槛。 作为国产GPU"四小龙"之一，沐曦股份自称实现千卡集群大规模商用，GPU产品累计销量超2.5万颗， 然而，巨额亏损、关联方交易、单一产品依赖和紧绷的现金流，正成为悬在"国产GPU第一股"头顶的利 剑。 能否顺利 IPO，关键不是寒武纪的市值神话，而是曦云 C500 的迭代节奏和 2024 年下半年能否拿出可 验证的盈利拐点。 持续亏损，资金链紧绷 2024年末，企业有息债务总额攀升至22.91亿元，其中短期债务5.17亿元，长期债务17.74亿元。当年经 营活动现金流仅能覆盖约24%的债务总额，短期债务覆盖率更是不足30%。 截至202 ...

Core Viewpoint - The article discusses the valuation and potential risks associated with the GPU company Muxi Integrated Circuit, which has a post-financing valuation of 21 billion yuan and is seeking to raise 3.904 billion yuan through its IPO. The focus is on whether the company's high valuation is justified or merely an illusion based on its financial performance and product dependency [2][28]. Group 1: Revenue Dependency and Risks - Muxi's revenue is heavily reliant on a single product, with over 97% of its income coming from one source, raising concerns about sustainability [3][7]. - The company reported a compound annual growth rate (CAGR) of 4074% from 2022 to 2024, with expectations for 2025 revenue to exceed 1 billion yuan, but this optimism is tempered by product structure issues [5][7]. - The revenue from Muxi's IP licensing business saw a dramatic decline of 95% from 2023 to 2024, indicating instability in its revenue streams [7][19]. Group 2: Customer Base and Related Transactions - Muxi's top five customers are also its shareholders, leading to potential conflicts of interest and questions about the sustainability of these relationships [10][15]. - The company’s major clients include Shanghai Yuanlu Jiajia Information Technology Co., which has a significant stake in Muxi, raising concerns about the nature of their transactions [11][15]. - The revenue contribution from major clients is substantial, with the top client contributing nearly 40% of the revenue in the first quarter of 2025, but the long-term stability of these relationships remains uncertain [16][18]. Group 3: Supply Chain and Product Development - Muxi is transitioning to a domestic supply chain for its new GPU products, which may introduce performance and cost challenges compared to its current suppliers [21][24]. - The upcoming C600 GPU is expected to have advanced features, but the acceptance of new products by customers is uncertain due to potential adaptation costs [22][26]. - The company aims to achieve breakeven by 2026, indicating a strategic shift in operations and product offerings to enhance competitiveness in the market [27][28].