Global stock markets experienced a significant downturn, as fears mounted regarding the substantial cash burn by major technology companies investing heavily in AI infrastructure. Tesla shares plummeted approximately 14% after reporting its first cash burn in two years, while Alphabet, Google's parent company, saw its stock decrease by about 7% after announcing it would increase its AI spending by an additional $15 billion, bringing its total expenditure for the year to $200 billion. This spending spree by the "Magnificent Seven" megacap companies, particularly Alphabet and Tesla, spooked investors who are now questioning the sustainability of these investments despite lofty valuations based on expected revenue gains.

Adding to the market's woes, oil prices surged past the $100 a barrel mark for the first time since May. Brent crude, the international benchmark, jumped 7.2% to $100.87 a barrel. This spike was primarily attributed to renewed geopolitical tensions in the Middle East, specifically attacks on two Saudi oil tankers in the Red Sea and concerns about the potential near-closure of the Strait of Hormuz. Higher oil prices are threatening to exacerbate inflation, potentially prompting central banks, including the Federal Reserve, to raise interest rates, which would further slow economic growth and negatively impact stock prices.

The market's reaction was broad, with the Dow Jones Industrial Average falling 1%, the S&P 500 losing 1.2%, and the Nasdaq Composite sliding around 2.2%. The yield on the 10-year Treasury note also climbed to 4.70%, reaching its highest level since January 2025, reflecting concerns about rising borrowing costs and the potential for tighter monetary policy. This market volatility builds on an already jittery environment, with some analysts noting that investors are now scrutinizing the capital expenditure levels of tech giants and the impact of surging oil prices amid geopolitical uncertainty. CNA, lse.co.uk

Despite Alphabet reporting stronger-than-expected profit and revenue, investor focus remained on its increased capital spending for AI, with investments nearly doubling to $45 billion in the last quarter. Similarly, Tesla's weaker-than-anticipated profit contributed to its significant stock drop. These developments indicate a shift in investor sentiment, as the market weighs the long-term potential of AI against the immediate costs and potential for diminished operating cash flow among large tech companies. abccolumbia.com, Benzinga