Oil prices experienced a significant jump on Monday following a weekend of escalated fighting in the Middle East, specifically involving the United States and Iran. Brent crude, the international benchmark, climbed by 9.6% to $83.30 a barrel, after both the U.S. and Iran asserted control over the Strait of Hormuz, a crucial shipping lane for oil. This surge was further fueled by President Donald Trump's announcement of reinstating a blockade on Iranian oil tankers and demanding a 20% payment on all cargo passing through the strait to compensate the U.S. for protection. The renewed conflict and potential disruptions to oil supplies intensified worries about global inflation, impacting market sentiment.
In tandem with rising oil prices, U.S. Treasury yields also increased. The yield on the benchmark 10-year Treasury note climbed to 4.61% from 4.56% on Friday, and a more significant rise from 3.97% before the conflict began. The 2-year note's yield, sensitive to Federal Reserve interest rate expectations, rose by 6.71 basis points to 4.275%, reaching its highest point since February 2025. These increases reflect investor concerns that higher oil prices could stoke inflation, potentially prompting the Federal Reserve and other central banks to raise interest rates, which could slow economic growth and negatively affect investment prices.
Conversely, stock markets saw a downturn, particularly within the artificial intelligence (AI) sector. The S&P 500 fell 0.8%, the Dow Jones Industrial Average dropped by 138 points (0.3%), and the Nasdaq composite sank by 1.6%. Companies heavily invested in AI, such as Micron Technology and Nvidia, experienced notable losses. Micron fell 4.4%, while Nvidia, the largest stock on Wall Street by value, dropped 3.5%, significantly weighing down the S&P 500. This decline reflects growing concerns among investors that the rapid surge in AI stock prices might be unsustainable and that demand may not meet profitability expectations. Investors also await profit reports from major companies and economic data, including CPI and PPI, later in the week.
