AI Spending Concerns and Oil Price Surge Trigger Broad Market Selloff

Stocks suffered a broad selloff on Thursday as investors questioned the mounting costs of the AI investment race following earnings from Alphabet and Tesla, while another sharp jump in oil prices fueled inflation concerns and pushed Treasury yields higher. The S&P 500 fell 1.2%, the Nasdaq Composite dropped 2.2%, and the Dow Jones Industrial Average declined 1.0%, with all three major averages closing near their session lows.

The market’s largest technology companies led the decline after Alphabet significantly increased its fiscal 2026 capital expenditure guidance, reigniting concerns about the near-term financial impact of massive AI investments. Investors worried that higher spending could pressure profit margins and free cash flow before meaningful returns materialize. The announcement also reinforced expectations that other hyperscale cloud providers may be forced to accelerate their own AI investment plans to remain competitive, even as shareholders become increasingly focused on capital discipline.

Tesla further dampened sentiment after reporting disappointing quarterly results alongside an even more aggressive long-term investment outlook. The company’s commitment to expanding spending on artificial intelligence and autonomous driving initiatives heightened concerns that profitability could remain under pressure for longer than previously anticipated.

The resulting shift in investor sentiment weighed heavily on the market’s largest growth stocks. Every member of the “Magnificent Seven” finished lower, driving the Vanguard Mega Cap Growth ETF down 2.4%. Communication services was the weakest-performing S&P 500 sector, falling 5.2%, while consumer discretionary declined 5.1%. In addition to Alphabet and Tesla, Amazon dropped 4.6% and Meta Platforms lost 3.4%, amplifying the pressure on the major indexes.

Despite the broad technology selloff, not every AI-related company participated in the decline. The information technology sector fell a comparatively modest 1.1%, and semiconductor stocks proved relatively resilient. The Philadelphia Semiconductor Index slipped just 0.5%, suggesting investors remain more optimistic about companies supplying the AI infrastructure buildout than the hyperscalers financing it.

Another major headwind came from energy markets. WTI crude oil futures surged $5.24, or 6.0%, to settle at $92.09 per barrel after reports of renewed Houthi attacks on commercial shipping in the Red Sea intensified geopolitical concerns. Oil prices have now climbed roughly 13% for the week, adding to inflation worries and pushing Treasury yields higher across the curve.

The rise in yields also prompted investors to reassess the Federal Reserve’s policy outlook. According to the CME FedWatch Tool, markets now assign a 35.8% probability of an interest rate hike at next week’s FOMC meeting, up sharply from 11.8% just one week earlier. Expectations for additional tightening later in the year also increased, with the implied probability of a September rate hike climbing to 80.1%.

Despite the sharp decline in the headline indexes, market weakness remained concentrated among the largest-cap stocks. The equal-weighted S&P 500 fell just 0.4%, while the Russell 2000 lost 0.7% and the S&P MidCap 400 declined 0.4%, both outperforming their large-cap counterparts.

Several sectors managed to post gains despite the broader risk-off environment. Industrials led the market with a 1.8% advance after strong earnings reports from United Rentals, Lockheed Martin, and Thermo Fisher Scientific. Energy also finished higher, rising 0.6% as higher crude prices boosted oil producers.

Defensive sectors attracted buying as investors sought relative safety. Health care gained 1.3%, supported by an 8.6% surge in Quest Diagnostics following a strong beat-and-raise earnings report, while utilities added 0.5%.

Thursday’s session underscored a growing shift in market focus from AI’s long-term potential to the enormous capital required to build that future. Investors became increasingly cautious toward the hyperscale technology companies funding the AI expansion, while businesses supplying the underlying infrastructure remained comparatively resilient. Combined with surging oil prices and rising Treasury yields, that changing narrative created a difficult environment for growth stocks and weighed heavily on the broader market.

Our FTinvest 11 model portfolio declined 0.85% to close at 1,072.64, giving back part of the gains recorded over the previous two sessions. Despite today’s pullback, the portfolio remains comfortably above the 1,000 level and is approximately 2.2% below its all-time closing high of 1,096.33, continuing to trade near record territory.

FTInvest 11 is now up approximately +15.58% year-to-date, maintaining a solid double-digit return for 2026. The latest decline appears to be a modest retracement following a strong recovery that carried the portfolio to multiple all-time highs earlier this month. With its June correction fully behind it, FTInvest 11 continues to demonstrate resilience through short-term market fluctuations while remaining focused on long-term capital appreciation through its disciplined, value-driven investment strategy.