算力板块蓄力调整，5G通信ETF、创业板人工智能ETF盘中下挫，天孚通信跌超7%

Core Viewpoint - The A-share market continues to experience a pullback, with major indices fluctuating around key levels, particularly affected by overseas risk events and heightened market sentiment [1] Group 1: Market Performance - The Shanghai Composite Index is oscillating around 3888 points, with significant declines in sectors such as optical modules, optical chips, optical communication, and 6G computing concepts [1] - Notable stocks like Tianfu Communication fell over 7%, while others like Xinyi Sheng and Changxin Bochuang dropped more than 3% [1] - The 5G Communication ETF (515050) decreased by over 3%, and the ChiNext AI ETF (159381) fell by 2.87% [1] Group 2: Sector Analysis - The computing power sector is currently in a performance realization phase, with relatively moderate valuation levels, and is expected to remain positive in the second half of the year, particularly for PCB, domestic computing power, IP licensing, and chip inductors [1] - The ChiNext AI ETF (159381) tracks the ChiNext AI Index (970070.CNI) and has a significant weight in optical modules (51.8%), covering domestic software and AI application companies [1] - The top three weighted stocks in the ChiNext AI ETF are Zhongji Xuchuang (20.95%), Xinyi Sheng (20.42%), and Tianfu Communication (5.39%) [1] Group 3: ETF Insights - The 5G Communication ETF (515050) tracks the CSI 5G Communication Theme Index and has a scale exceeding 8 billion yuan, focusing on the supply chains of companies like Nvidia, Apple, and Huawei [1] - The index has a high purity of "hard technology," with nearly 80% of its weight in the communication and electronics sectors, where communication accounts for 44% and electronics for 35% [1] - The ETF aims to create a closed loop of "network construction + terminal matching" by focusing on both infrastructure and upstream semiconductor components [1]