Story
Asian Stocks Tumble as US-Iran Tensions Spike Oil Prices; South Korea's KOSPI Drops 5%

Summary
Asian equity markets fell sharply on Monday after a flare-up in U.S.-Iran tensions drove crude oil prices higher, stoking inflation fears and hitting technology shares. South Korea's KOSPI led the regional decline, plunging more than 5% amid a sell-off in major chipmakers.
Asian stocks fell on Monday, with South Korea’s technology-heavy index leading a broad regional sell-off, as escalating geopolitical tensions in the Middle East sent oil prices surging and dampened investor risk appetite.
Geopolitical Tensions Fuel Oil Surge
Investor sentiment soured following a weekend flare-up in the Middle East. According to reports, Iran expanded missile and drone attacks to Gulf states in retaliation for U.S. military strikes and declared the critical Strait of Hormuz closed. The U.S. disputed Iran's claim, stating that commercial shipping through the waterway remained open under its protection.
The uncertainty drove Brent crude futures more than 3% higher during Asian trading hours. The spike reignited market fears that rising energy costs could fuel global inflation, potentially complicating the outlook for central bank monetary policy.
Tech Stocks Lead Widespread Losses
South Korea’s benchmark KOSPI was the region's biggest loser, tumbling more than 5%. The index was dragged down by heavyweight chipmakers, with Samsung Electronics (KS:005930) shares sliding nearly 7% and SK Hynix (KS:000660) slumping 11%.
Other major markets also retreated:
Ad- Japan’s Nikkei 225 fell 1.3%.
- China’s Shanghai Composite and CSI 300 indices declined 0.7% and 0.3%, respectively.
- Australia’s S&P/ASX 200 edged down 0.3%.
Futures tracking U.S. equities also pointed to a lower open, with contracts for the tech-heavy Nasdaq leading the decline, signaling a risk-off mood spreading to global markets.
Focus Shifts to Inflation Data and Earnings
Investors are now looking ahead to a key U.S. consumer price inflation report due on Tuesday for further clues on the Federal Reserve's policy path. A sharp, energy-driven rise in inflation could pressure policymakers to maintain elevated borrowing costs.
The start of the second-quarter corporate earnings season this week, with results due from major U.S. banks and Taiwan Semiconductor Manufacturing Co., will also be closely watched. Traders will assess whether strong corporate fundamentals can shift market focus back from geopolitical risks to growth themes like artificial intelligence.