杨振宁，在京逝世！

Core Viewpoint - The article highlights significant market movements and reactions in the stock market, particularly focusing on the semiconductor sector and the impact of artificial intelligence developments [3]. Group 1 - There was a collective surge in the stock market, particularly in the semiconductor sector, driven by a sudden rumor [3]. - A notable figure on Wall Street issued a major warning, indicating potential volatility or risks in the market [3]. - Two major companies experienced a sharp increase in their stock prices, attributed to recent developments in artificial intelligence [3]. - A specific stock saw a dramatic increase of 167%, indicating strong market interest and activity in A-shares and Hong Kong stocks [3].