CNBC每日开盘：万圣节前夕，AI支出担忧阴魂不散

Investor sentiment is currently unsettled, driven by increasing anxieties surrounding the sustainability and profitability of artificial intelligence spending. These fears are contributing to market unease, particularly as the Halloween period approaches, often associated with seasonal volatility. Companies heavily invested in AI technologies are facing heightened scrutiny regarding their capital expenditures and the tangible returns on these significant investments. This cautious outlook could lead to a re-evaluation of tech sector valuations, especially for firms whose growth narratives are heavily reliant on AI advancements. The broader market implications include potential shifts in investment flows away from speculative tech plays towards more stable assets.