对于2026年，这是高盛顶级科技交易员最关心的10个问题

Core Insights - The focus on Wall Street is shifting from hardware speculation to a deeper examination of AI investment returns and market sustainability as 2026 approaches [1][4] - Despite a projected 20% increase in the Nasdaq 100 index in 2025, the growth rate is slowing compared to previous years, with over 30% of its components ending the year in decline [1] - The debate centers around the sustainability of AI infrastructure spending, which could reach $3 trillion to $4 trillion annually by 2030, and when this investment will translate into productivity gains [4] Key Questions for 2026 - The report outlines ten critical questions that will shape the market narrative in 2026, including the direction of AI discussions, software company valuations, and the impact of commodity cycles [5][6] - Specific areas of focus include the potential for "physical AI" applications, the future of software pricing models, and the implications of generative AI on employment and productivity [5][6] Market Trends and Predictions - The market is characterized by significant differentiation, with semiconductor and network infrastructure sectors outperforming while telecom, payment, and application software lag [7] - The Nasdaq 100 index is expected to maintain a solid return outlook, particularly in the first half of 2026, as low expectations may favor market gains [7] - Investors are encouraged to seek "second derivatives" of AI, focusing on undervalued stocks that leverage AI for cost reduction and new revenue streams, rather than solely hardware suppliers [7]