英伟达GTC大会利好兑现，算力板块大跌

Core Viewpoint - Nvidia announced several technological breakthroughs at the GTC conference, but the A-share computing power industry chain experienced a significant decline in response [1] Group 1: Market Reaction - On March 17, the early trading session saw a drop in sectors such as optical modules, optical communications, and optical chips, with many leading stocks retracting nearly 5 days of gains [1] - Notable declines included Tianfu Communication and Changguang Huaxin, both dropping over 8%, while Dongshan Precision, Guangku Technology, and Tengjing Technology also followed suit [1] Group 2: Analysis of Nvidia's Announcement - Nvidia's announcement included new generation chips expected to be launched in 2028, which has created short-term market sentiment disturbances [1] - Although the iteration of related optical communication technologies may provide long-term benefits, the immediate impact on the industry chain's growth remains uncertain for investors seeking certainty [1] Group 3: Valuation Concerns - The industry chain is facing significant short-term correction pressure due to high valuations and substantial prior gains [1]