BY EMMANUEL OGBONNA
Global financial markets opened the week on a cautious note as renewed military tensions in the Middle East pushed oil prices sharply higher, while another round of selling in artificial intelligence and semiconductor stocks weighed heavily on major equity markets.
Investors reacted to fresh geopolitical developments after the United States and Iran each asserted control over the strategically vital Strait of Hormuz following a weekend of military exchanges in the region. The latest escalation renewed concerns about disruptions to global energy supplies and added to growing uncertainty across financial markets.
Brent crude, the international benchmark for oil prices, climbed 3.9% to $78.95 per barrel during Monday trading. The increase reflected mounting fears that continued instability around the Strait of Hormuz could interfere with global crude exports from the Persian Gulf, one of the world’s most important energy-producing regions.
The Strait of Hormuz serves as a critical shipping route for international oil and liquefied natural gas exports. Any interruption to traffic through the narrow waterway has the potential to affect global fuel supplies, increase transportation costs, and drive higher energy prices for consumers and businesses around the world.
Oil prices briefly approached the $80-per-barrel mark after President Donald Trump proposed imposing a 20% toll on cargo vessels traveling through the Strait of Hormuz. Trump argued that the fee would help finance the cost of U.S. military operations responsible for protecting commercial shipping in the region.
Although prices eased slightly after the initial reaction, crude oil remained significantly higher than Friday’s closing levels. Even with the latest gains, however, oil prices continue to trade well below the wartime peak of nearly $120 per barrel reached earlier during the conflict.
The renewed increase in energy prices quickly affected broader financial markets, where investors balanced concerns about geopolitical instability with ongoing questions surrounding the sustainability of the artificial intelligence investment boom.
On Wall Street, the benchmark S&P 500 declined 0.3%, pulling back after recording gains in four of the previous five weeks. The Dow Jones Industrial Average slipped approximately 65 points, or 0.1%, while the technology-heavy Nasdaq Composite fell 0.7% as semiconductor companies continued to face selling pressure.
Technology stocks once again accounted for much of the market’s weakness.
Micron Technology, one of the world’s leading memory chip manufacturers, dropped 3.8%, trimming some of the extraordinary gains the company has enjoyed during the past year. Despite Monday’s decline, Micron shares remain more than 240% higher for the year as surging demand for advanced memory chips fueled by artificial intelligence applications has transformed investor expectations for the semiconductor industry.
The explosive growth in AI-related investments has generated substantial profits for many technology companies as businesses worldwide increase spending on data centers, cloud computing infrastructure, and advanced processors capable of supporting increasingly sophisticated artificial intelligence systems.
However, investors have become increasingly concerned that valuations throughout the technology sector may have risen faster than long-term earnings prospects can justify.
Many analysts warn that expectations surrounding artificial intelligence remain exceptionally high and that companies will eventually need to demonstrate sustained revenue growth and meaningful productivity improvements to support current share prices. Any slowdown in corporate AI spending or technological advances that reduce hardware demand could significantly alter the outlook for semiconductor manufacturers.
Nvidia, the world’s largest publicly traded company by market value and one of the primary beneficiaries of the artificial intelligence boom, also came under pressure. Its shares declined 1.7%, making it the single largest contributor to the S&P 500’s decline because of the company’s enormous weighting within the index.
Market weakness first emerged during trading in Asia before spreading to Europe and the United States.
South Korea experienced the sharpest losses among major global markets. The Kospi index plunged 8.9% as investors aggressively sold technology shares amid concerns over elevated valuations and broader geopolitical uncertainty.
One of the session’s biggest declines came from SK Hynix, whose shares in Seoul tumbled 15.4%, marking the company’s largest single-day decline since it began trading in 1997.
The sharp drop followed what had initially been a successful debut for the company’s American depositary shares on Wall Street. SK Hynix raised approximately $26.5 billion through its U.S. share offering, and the stock surged more than 13% during its first day of trading. On Monday, however, those U.S.-listed shares fell 6.4% as investor sentiment shifted.
Despite renewed pressure on semiconductor stocks, not every company within the sector experienced declines.
Taiwan Semiconductor Manufacturing Company (TSMC), the world’s largest contract chip manufacturer, reported another month of exceptionally strong financial performance. The company announced that June revenue increased nearly 68% compared with the same month last year, bringing total revenue growth during the first half of the year to 35.6%.
The strong results reflected continuing global demand for advanced semiconductor manufacturing used in artificial intelligence processors, high-performance computing systems, smartphones, and cloud infrastructure.
TSMC’s shares listed in Taiwan rose 1% following the announcement, although its American-listed shares slipped 0.4% during U.S. trading as broader market weakness offset the positive revenue figures.
Investor attention is now shifting toward one of the busiest weeks of the corporate earnings season, with several of America’s largest financial institutions scheduled to release quarterly results.
Major banks including Bank of America, Citigroup, JPMorgan Chase, Goldman Sachs, and Wells Fargo are all expected to report earnings, providing investors with valuable insight into consumer spending, business investment, lending activity, and the overall strength of the U.S. economy.
Market analysts currently expect companies within the S&P 500 to report average earnings growth of approximately 23.6% compared with the same quarter a year earlier. If realized, it would represent the second consecutive quarter in which corporate profits expanded by more than 20%.
Such strong earnings growth is viewed as increasingly important given the substantial gains recorded by U.S. stock markets over the past year.
Many analysts argue that continued profit expansion will be necessary to justify current market valuations, particularly among technology companies whose shares have risen dramatically due to optimism surrounding artificial intelligence.
Historically, American companies have frequently exceeded Wall Street’s earnings expectations. According to market data, S&P 500 companies have reported better-than-expected results in 37 of the past 40 quarters. If businesses once again outperform analyst forecasts by their typical margins, overall earnings growth for the latest reporting period could become the strongest since 2021.
Meanwhile, developments in the bond market reflected growing concern over inflationary pressures linked to rising oil prices.
The yield on the benchmark 10-year U.S. Treasury note climbed to 4.59%, up from 4.56% at Friday’s close. Treasury yields have risen considerably since the conflict involving Iran intensified, having stood below 4% before the outbreak of hostilities.
Higher oil prices increase the risk of renewed inflation by raising transportation, manufacturing, and energy costs throughout the global economy. Those concerns have prompted investors to reconsider expectations for future monetary policy, with some analysts believing the Federal Reserve and other major central banks may need to maintain higher interest rates for longer than previously anticipated.
While elevated interest rates can help contain inflation, they also increase borrowing costs for consumers and businesses, slow economic activity, and generally reduce the attractiveness of riskier investments such as equities.
European stock markets recorded relatively modest movements compared with the larger swings seen in Asia.
Asian markets, however, remained under significant pressure beyond South Korea. Japan’s Nikkei 225 declined 1.9%, while China’s Shanghai Composite Index fell 2.1% as investors responded to both geopolitical uncertainty and continued concerns surrounding the outlook for technology shares.
With military tensions in the Middle East showing few signs of easing and investors preparing for a crucial week of corporate earnings, analysts expect financial markets to remain highly sensitive to developments affecting global energy supplies, inflation expectations, central bank policy, and the long-term outlook for artificial intelligence-driven growth.
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