A股、A50，午后突变！

Market Overview - A-shares experienced a significant drop in the afternoon session, with the ChiNext Index and Northbound 50 Index falling over 1% [1] - The Shanghai Composite Index closed down 0.94% at 3348.37 points, while the Shenzhen Component Index fell 0.85% to 10132.41 points [2] - The total trading volume in the Shanghai and Shenzhen markets reached 118.28 billion yuan, an increase of 42.9 billion yuan from the previous day [1] Sector Performance - The financial sector saw a collective decline, with companies like Xinhua Insurance and Shanghai Bank dropping over 2% [2] - The pharmaceutical sector showed resilience, with stocks such as New World and Duorui Pharmaceutical hitting the 20% daily limit up [6][8] - The controlled nuclear fusion concept surged, with stocks like Zhongzhou Special Materials and Haheng Huaton reaching the daily limit up [9][11] Notable Stocks - BYD's stock price rose over 4%, reaching a historical high, with its Hong Kong shares also hitting a new peak [2] - The newly listed Hengrui Medicine in Hong Kong saw a significant increase, with a peak rise of over 37% and a closing gain of approximately 25% [5] - The stock of Sanofi Health experienced a sharp decline, dropping over 10% during trading, while also facing a risk warning due to a cumulative increase of over 100% since May 19 [12] Industry Trends - The pharmaceutical index has been under pressure since 2021 but is expected to stabilize and grow due to ongoing industry innovations and favorable policies [8] - The controlled nuclear fusion sector is gaining momentum, with domestic projects advancing due to increased investment and technological breakthroughs [11] - Companies involved in the nuclear fusion supply chain are recommended for investment, particularly those focusing on key materials and devices [11]