Core Viewpoint - The brain-computer interface (BCI) sector is experiencing significant growth, driven by technological advancements and increased investment, particularly in the A-share market, with related stocks showing strong performance [1][5]. Group 1: Market Performance - The medical device index ETF (159898) has seen a rise of over 1.94%, with approximately 37 million yuan in net inflow as of the report [1]. - Key stocks in the BCI sector include Kewei Medical, which surged over 19%, and Shuoshi Bio, which increased over 13%, among others [3]. Group 2: Industry Growth - The global BCI market has grown from $1.2 billion in 2019 to nearly $2 billion in 2023, with a compound annual growth rate (CAGR) exceeding 13% [5]. - Projections indicate that the global BCI industry could reach $7.63 billion by 2029, with a CAGR of over 25% from 2024 to 2029 [5]. Group 3: Investment Opportunities - The BCI sector is positioned at a critical juncture with strong policy support, rapid technological iteration, and accelerated commercialization, making it a promising area for investment [8]. - The medical device index ETF (159898) tracks a broad range of medical device sectors, with leading companies like Mindray Medical and United Imaging Healthcare, providing a pure representation of the A-share medical device sector [8][9].