US stock markets started negatively on Tuesday, May 12, due to the fragility of the ceasefire in the Middle East and the high oil prices. Nasdaq 100 futures fell by 0.8%, and S&P 500 futures dropped by 0.4%. There is a pause following the rapid rise in technology stocks.
Tensions in the Middle East, especially conflicts between Iran and the US, are increasing uncertainty in the markets. US President Donald Trump stated that the ceasefire with Iran is "faltering," indicating that significant disagreements continue in the peace talks. Iran, on the other hand, presented a proposal including compensation demands and emphasizing sovereignty over the Strait of Hormuz to end the war on all fronts.
As a result of these developments, Brent crude oil prices rose above $108 per barrel, continuing their increase over the last three sessions. The rise in oil prices led to the US inflation rate in April 2026 rising to 3.8%, marking the highest level since May 2023.
In the technology sector, signs of fatigue are seen in semiconductor stocks following the AI-driven rally. Shares of South Korean technology companies like Samsung and SK Hynix lost value due to potential new taxes related to artificial intelligence. This situation indicates increased risks and uncertainties in the markets.
Experts warn that if oil prices continue to rise and inflation spreads beyond energy, pressure on stocks, especially technology shares, may increase. Developments in the markets and diplomatic processes in the Middle East are being closely monitored.
