A股三大指数集体低开，创业板指跌0.18%

Group 1 - A-shares opened lower with the Shanghai Composite Index down 0.01%, Shenzhen Component Index down 0.17%, and ChiNext Index down 0.18% on May 27, 2023, with declines led by sectors such as electric machinery and passenger vehicles [1] Group 2 - Guotai Junan indicates that uncertainties surrounding Trump's tax cuts and tariff threats may lead to fluctuating market sentiment, with metal prices expected to experience volatility [2] - Huatai Securities highlights that the price of natural uranium has rebounded from $65/lbs to $71/lbs following tariff exemptions, and global nuclear energy policies are strengthening, which may boost equipment opportunities in the nuclear power sector [3] Group 3 - CICC notes that since 2000, Korean companies have dominated the global TV market, but Chinese companies are now gaining ground due to improved supply chain positioning and accelerated R&D, leading to a shift in the competitive landscape [4] - The market share of Chinese black TV brands is expected to increase, with the global TV market's CR4 reaching 56.3% by 2024, indicating a significant market presence [4] - The adoption of mid-to-high-end Mini LED technology is anticipated to enhance the brand image and profitability of Chinese black TV companies, potentially reshaping the industry's valuation system and creating new growth opportunities [4]