S&P 500, Nasdaq slide as Meta, Microsoft fall on AI spending concerns

The S&P 500 and Nasdaq declined as investor concerns over surging AI-related capital expenditures from major tech firms, particularly Meta and Microsoft, weighed on sentiment. Meta plunged 11.8% and Microsoft dipped 3.5% after forecasting significantly higher AI investments, despite Alphabet's rise on strong advertising and cloud results. This market pressure was compounded by the Federal Reserve's cautious outlook on future rate cuts, which tempered expectations for continued monetary policy easing following a recent reduction.

Analysis

The S&P 500 and Nasdaq Composite declined on Thursday, primarily due to investor apprehension over surging artificial intelligence (AI) capital expenditures from major tech firms. Meta Platforms (META) plunged 11.8% after forecasting "notably larger" capex for AI, while Microsoft (MSFT) dipped 3.5% following a record $35 billion Q1 capital expenditure. This signals market scrutiny on the immediate profitability and scale of AI infrastructure investments.

This market reaction contrasts with recent record highs, which were supported by strong quarterly earnings beats (84.2% of S&P 500 companies). However, tech performance was mixed, with Alphabet (GOOGL) jumping 4.9% on robust advertising and cloud results, highlighting divergence within the sector. The substantial weight of top tech companies (35% of S&P 500) amplifies individual stock impacts on broader indices.

Further contributing to investor anxiety, the Federal Reserve tempered expectations for future rate cuts, indicating a December reduction was not a "foregone conclusion" despite a recent quarter-point cut. This prompted traders to reduce December cut odds from 90% to 70%. Broader market breadth was negative, with declining issues outnumbering advancers on both the NYSE and Nasdaq.

Key Decisions for Investors

• Investors should closely monitor the capital expenditure guidance of major tech companies, particularly concerning AI investments, as the market is scrutinizing the immediate profitability and return on these substantial outlays.
• Re-evaluate expectations for aggressive monetary policy easing, as the Federal Reserve's recent communication suggests a more cautious approach to future rate cuts than previously priced in.
• Consider differentiating exposure within the technology sector, favoring companies demonstrating clear profitability and strong core business growth over those with high, unproven AI investment costs.
• Observe broader market breadth and sector-specific performance for signs of underlying economic health, as negative breadth and varied results beyond mega-cap tech indicate broader pressures.