U.S. equities retreated on Thursday as investors responded to a fresh surge in energy prices and disappointing reactions to earnings from two of the market’s largest technology companies. Escalating geopolitical tensions in the Middle East pushed oil prices to multi-week highs, while higher Treasury yields added further pressure on growth stocks, sending major indexes lower.

The combination of geopolitical uncertainty, rising inflation expectations, and mixed corporate earnings created a risk-off environment across financial markets, with technology shares leading the decline.

Oil Rally Sparks Inflation and Interest Rate Concerns

The Dow Jones Industrial Average fell more than 500 points, while the S&P 500 lost over 1% and the Nasdaq Composite dropped approximately 2% as investors reacted to a sharp increase in crude oil prices.

Brent crude surged above $100 per barrel after Yemen’s Iran-backed Houthi militants claimed attacks on two Saudi oil tankers in the Red Sea, raising concerns that instability in the region could threaten global energy supplies. U.S. West Texas Intermediate crude also climbed above $91 per barrel, with both benchmarks reaching their highest levels since before the recent ceasefire between the United States and Iran.

Market sentiment was further affected after President Donald Trump warned that the United States would respond forcefully to any future attacks by Iran on shipping in the Strait of Hormuz, increasing fears that the conflict could expand further.

The rise in oil prices fueled renewed concerns that inflation could remain elevated, prompting investors to reassess expectations for future monetary policy.

Mega-Cap Technology Stocks Weigh on Major Indexes

Technology shares added to the broader market weakness following earnings-related declines in two of the largest companies in the sector.

Alphabet fell approximately 7% after increasing its projected 2026 capital expenditures to as much as $205 billion, reflecting continued investment in artificial intelligence infrastructure. While management cited strong AI demand as the primary driver, investors expressed concern about the pace of spending and its potential impact on future profitability.

Tesla shares dropped more than 13% after reporting second-quarter earnings that fell well below analyst expectations. Although revenue exceeded forecasts, higher operating expenses and continued investment in artificial intelligence, manufacturing capacity, and next-generation technologies pressured margins and reduced earnings.

The declines in both companies weighed heavily on the Nasdaq, given their significant index weightings.

Treasury Yields Rise as Markets Reassess Risk

The surge in oil prices also pushed U.S. Treasury yields higher, with the benchmark 10-year Treasury yield reaching its highest level since January 2025.

Higher yields generally reduce the relative attractiveness of high-growth technology stocks by increasing discount rates applied to future earnings. Combined with geopolitical uncertainty and elevated energy prices, the move reinforced investor caution across risk assets.

Financial markets now face multiple challenges simultaneously, including persistent inflation risks, ongoing geopolitical instability, elevated corporate spending on artificial intelligence, and uncertainty surrounding the future direction of Federal Reserve policy.

Looking ahead, investors will continue monitoring developments in the Middle East alongside upcoming corporate earnings and economic data. Whether oil prices remain elevated and geopolitical tensions intensify could significantly influence inflation expectations, bond yields, and overall market direction during the weeks ahead.