AI仍能成为未来投资主线，关注通信ETF（515880）

Group 1 - The semiconductor sector saw significant gains on November 25, likely influenced by the overnight rebound in US stocks, with a continued focus on AI as a key investment theme [1] - Concerns over AI investment returns have led to unusual market behavior, such as Nvidia's strong earnings resulting in a high open but low close for US stocks [1] - Major tech companies and data center developers have issued a total of $90 billion in bonds since September, surpassing the total from the previous 40 months, indicating a high demand for financing to support their computing infrastructure [1] Group 2 - The release of Google's Gemini3 and increased probabilities of Federal Reserve rate cuts have catalyzed a rebound in overseas markets, prompting investors to view recent adjustments as technical corrections [6] - The communication ETF (515880) is highlighted for its high proportion of optical modules, which are deeply involved in the overseas AI computing supply chain, ensuring higher earnings certainty [6] - The semiconductor chip sector is expected to benefit from domestic substitution trends in the context of major power dynamics and the "14th Five-Year Plan," with investment opportunities available through semiconductor equipment ETFs (159516) [6]