Stock market today: Dow, S&P 500, Nasdaq rise as TSMC's stellar earnings eclipse trade-war jitters

US stocks advanced on Thursday, primarily fueled by Taiwan Semiconductor Manufacturing Company's (TSMC) robust quarterly earnings, which surpassed estimates and included a raised 2025 revenue outlook, significantly bolstering optimism for AI demand and lifting AI-related stocks. This positive sentiment propelled the Nasdaq and S&P 500 higher, even as renewed fears of a prolonged US-China trade war emerged following President Trump's comments. The market also contended with ongoing analyst debates regarding a potential AI valuation bubble and the continued US government shutdown, which is withholding critical economic data.

Analysis

Taiwan Semiconductor Manufacturing Company (TSM) reported a nearly 40% surge in quarterly profit, beating estimates, and raised its 2025 revenue growth outlook to the mid-30% range. This strong performance, driven by robust AI demand, significantly bolstered investor confidence in the AI megatrend, propelling AI-related stocks like Nvidia (+1%) and Micron (+3.4%) higher. TSMC's increased capital expenditure to $40 billion, with 70% for advanced AI chipmaking, further validates its conviction in future growth.

Despite the AI-driven optimism, Wall Street analysts voice growing concerns about a potential AI market bubble, citing stretched valuations and interconnected investments tied to OpenAI's unproven profitability. The market's cautious response to Oracle's AI backlog, where shares dropped after OpenAI's dominant role was revealed, suggests investors are applying a substantial discount (~50%) to speculative AI promises. This indicates a selective approach to AI valuations, favoring tangible results over hype.

Significant macroeconomic headwinds persist, including escalating US-China trade tensions, with President Trump declaring an ongoing trade war and threatening new tariffs. The ongoing US government shutdown, now in its third week, exacerbates uncertainty by withholding crucial economic data and is expected to continue into November. Amidst these challenges, Salesforce (CRM) provided a strong revenue forecast, contrasting with HPE's (HPE) 8% pre-market decline due to weak guidance, highlighting a bifurcated market.

Key Decisions for Investors

• Investors should maintain selective exposure to the AI sector, prioritizing companies with proven profitability and tangible revenue streams over those heavily reliant on speculative future promises, given current valuation concerns.
• Monitor geopolitical developments, particularly US-China trade relations and the duration of the US government shutdown, as these macro factors introduce significant market uncertainty and could impact broader economic stability.
• Evaluate individual company fundamentals and guidance carefully, as the market exhibits bifurcated performance, rewarding strong outlooks (e.g., Salesforce) while penalizing weak projections (e.g., HPE).