最牛AI赛道？年内狂飙超90%！多重逻辑催化，千亿算力龙头集体暴涨，159363迭创新高资金涌入

Core Viewpoint - The AI sector, particularly the upstream hardware represented by optical modules, is experiencing significant growth, with the ChiNext AI index rising over 90% year-to-date, outperforming other AI indices [2][3]. Market Performance - The ChiNext AI index has seen a remarkable increase of over 90% since the beginning of the year, significantly outperforming the CSI AI and other similar indices [2]. - Major companies in the optical module sector, such as Yizhongtian, Zhongji Xuchuang, and Tianfu Communication, have reported substantial stock price increases, with gains exceeding 14%, 11%, and 9% respectively [1]. Investment Trends - The total capital expenditure by cloud service providers (CSPs) is projected to reach approximately $600 billion this year, with the Chinese market expected to account for around $50 billion and grow at an annual rate of about 50% [5]. - The ChiNext AI ETF (159363) has seen strong performance, with a daily average trading volume exceeding 500 million yuan and a total net subscription of 1.9 billion units, indicating robust investor confidence in the AI sector [6]. Earnings Performance - As of August 31, 30 out of 50 disclosed companies in the ChiNext AI index reported positive net profit growth, driven by high demand for AI and computing power [5]. - Notable profit growth was observed in companies like Xinyi Sheng and Ruijie Networks, with net profit growth rates exceeding 355% and 194% respectively [5]. Valuation Insights - Analysts suggest that the current valuation of companies in the communication AI sector remains relatively low, with expected future valuations in the range of 20-30x based on consensus earnings forecasts [5].