July 30, 2026

Oil Prices and Asian Shares Decline Amid Market Uncertainty

Oil prices decreased on Wednesday as Asian markets showed mostly downward trends. South Korea’s Kospi index continued its decline, having already lost over 16% in the previous two days. The fluctuations in crude prices followed the U.S. announcement of a “heavy wave” of strikes against Iran after an attack on a U.S. base.

In South Korea, the recent dip in the Kospi, which benefits significantly from the global AI boom, has led to scrutiny. Some analysts view this as reflecting broader skepticism about large-scale technology investments in AI. On Thursday, the Kospi was down 1.3% to 5,587.82, following a 10.8% drop on Tuesday and nearly 6% on Wednesday. Despite a more than 35% fall from its all-time high above 9,000 in June, the index is still up around 30% this year.

Samsung Electronics rose 2.4% as the company reported record operating profits for the latest quarter, matching expectations. Conversely, SK Hynix dropped 4% after a significant gain in quarterly operating profit that still fell short of investor expectations.

In Tokyo, the Nikkei 225 increased by 0.6% to 61,778.02. SoftBank Group, an Open-AI investor, fell 2.7%, while Tokyo Electron and Kioxia Holdings saw gains of 4.4% and 7.5%, respectively. Taiwan’s Taiex, buoyed by the AI surge, rose 0.8% as TSMC climbed 1.8%.

Hong Kong’s Hang Seng index slightly decreased by under 0.1% to 25,779.70, and the Shanghai Composite index fell 1.2% to 3,784.55. Australia’s S&P/ASX 200 also slipped 0.9% to 8,959.90, while India’s Sensex showed a minor increase of less than 0.1%.

Oil prices continued to fall on Thursday as tensions between the U.S. and Iran persisted. President Donald Trump stated that the U.S. would respond strongly after Iran’s attack on a U.S. base in Jordan. Traffic in the Strait of Hormuz, crucial for oil transportation, remains restricted, influencing global supply pressures. Brent crude declined 1% to $87.18 per barrel, after significant gains the previous day. It had been around $72 a barrel in late February.

U.S. benchmark crude reduced by 0.9% to $83.74 per barrel. On Wednesday, the S&P 500 fell 1.5% to 7,316.15, the Dow Jones decreased by 2.2% to 51,594.14, and the Nasdaq dropped 1.7% to 24,442.94. Key chipmakers saw declines: Nvidia by 3.6%, AMD by 5.5%, and Broadcom by 2.8%.

These losses coincided with the Federal Reserve’s decision to keep interest rates steady. Despite some committee members supporting a rate hike, Federal Reserve Chairman Kevin Warsh emphasized efforts to lower inflation to 2%. He maintained a strategy of providing less direction on potential interest rate actions, which increases market volatility.

“Did the Fed take an explicit change in its policy rate today?” Warsh remarked. “No, but I think that’s the beginning of the story.”

The U.S. 10-year Treasury yield increased to 4.70%, up from 4.61% on Tuesday. The U.S. dollar moved higher against the yen to 163.49, while the euro dropped to $1.1454.

AP Business Writers Stan Choe and Matt Ott contributed to this report.

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