Geopolitical shock and tech selloff drive global stocks lower as oil surges

Global stock markets are under pressure today as investors react to a sharp rise in geopolitical risk, higher oil prices, and a broad rotation out of technology and other risk assets. The main driver is renewed U.S.–Iran tensions after President Donald Trump declared the ceasefire and related memorandum of understanding with Iran “over,” coinciding with renewed strikes between the two countries. This has pushed oil prices sharply higher, boosting energy-related shares but weighing on most other sectors as markets reassess the risks of prolonged conflict, potential supply disruptions, and higher energy costs for the global economy. Major U.S. indices are trading lower, with the Dow, S&P 500, and Nasdaq all down as investors move away from riskier assets and into safer havens in response to the geopolitical shock and more expensive oil. At the same time, there is a pronounced rotation away from technology and AI-related stocks worldwide. After a strong, AI-fueled rally earlier in the year, investors are taking profits in high-valuation tech names and especially in semiconductor companies, amid weaker signals from key global chipmakers and concerns that valuations have become stretched. This is hitting the tech-heavy Nasdaq particularly hard and is also pressuring chip-focused indices and ETFs. The same pattern is visible in Asia, where Korean and other regional chipmakers are seeing heavy selling, underscoring that the tech pullback is global rather than confined to one market. These forces are feeding into broad declines across Asian and European markets. In Asia, benchmarks such as South Korea’s Kospi and Japan’s Nikkei and Topix are down sharply, reflecting both the tech-sector adjustment and heightened geopolitical worries. Mainland Chinese equities are weaker as well, while Hong Kong shows only limited resilience. In Europe, the Stoxx 600 and major national indices like Germany’s DAX are lower across most sectors, with oil and gas shares the main exception as they benefit from higher crude prices. Rising global bond yields are adding another layer of pressure on equities, reinforcing a risk-off tone in which decliners far outnumber gainers across major regional indices. Overall, today’s market action is being driven by the combination of escalating U.S.–Iran tensions and surging oil, a global de-risking from expensive technology and AI-related stocks, and synchronized equity weakness across Asia and Europe alongside higher yields, all of which are contributing to a cautious, bearish mood in global markets.