ETF复盘0813-沪指8连阳创近4年新高，创50ETF收涨4.11%，实现三连涨

Market Overview - On August 13, A-shares saw all three major indices rise, with the ChiNext Index performing particularly well, closing up 3.62% [1] - The Shanghai Composite Index rose by 0.48%, while the Shenzhen Component Index increased by 1.76% [1] - Over 2,700 stocks in the market experienced gains [1] Sector Performance - The telecommunications sector led the gains with an increase of 4.91%, followed by non-ferrous metals at 2.37% and electronics at 2.01% [7] - Conversely, the banking sector saw a decline of 1.06%, coal fell by 0.81%, and food and beverage dropped by 0.42% [7] Notable Stocks and Indices - The ChiNext 50 Index surged by 4.14%, while the ChiNext Index itself rose by 3.62% [2] - The Hang Seng Technology Index increased by 3.52%, leading the gains in Hong Kong stocks [4][5] Industry Highlights - In the optical module sector, the stock "Yizhongtian" saw significant gains, reaching a new historical high [7] - The China Securities Regulatory Commission highlighted the importance of computational power in the post-GPT-5 era, indicating a strong outlook for the overseas computational power industry [7] Medical Device Sector - Recent policies have been introduced to support the domestic brain-computer interface industry, aiming for breakthroughs in key technologies by 2027 [8] - The medical device sector is experiencing a rebound after four years of decline, driven by policy optimization and innovation in Hong Kong-listed medical device companies [9] - Notable companies in the sector have seen stock price increases exceeding 300% year-to-date, reflecting improved performance and valuation recovery [9]