油價飆升與AI支出疑慮聯手引爆：2026年7月24日亞洲市場為何全面下殺？

On July 24, 2026, Asian markets suffered a broad selloff driven by a "perfect storm" of spiking oil prices above $100/barrel (due to escalating Middle East conflict) and renewed AI spending fears after Alphabet and Tesla earnings rattled Wall Street overnight. Here is the breakdown by trigger, indices, stocks, and market dynamics.

Triggers

1. Oil surge above $100 — inflation & rate-hike fears

• Brent crude surged 7% overnight to a two-month high of $102, then held at ~$100.85, after attacks on tankers near the Strait of Hormuz and intensifying U.S.-Iran fighting .
• Oil had risen nearly 40% in July alone, reviving inflation fears and stoking expectations of global interest rate hikes .
• Bond markets sold off sharply as rate-hike bets increased .

2. AI spending shock from Wall Street megacaps

• On July 23, Tesla plunged ~14% and Alphabet fell ~7% after both reported rising AI capital expenditure, negative cash flows, and missed profit estimates .
• The "Magnificent Seven" lost a combined $767 billion in market cap on July 23 — their worst single-day drop since the April 2025 tariff rout .
• The Nasdaq Composite fell 2.15% and the S&P 500 lost 1.21% on July 23 .
• Asian markets opened Friday tracking that U.S. tech rout directly .

Most Affected Indices

Index	Decline	Key Detail
Japan – Nikkei 225	Nearly -3%	Slid ~3%, one of the hardest-hit regionally
South Korea – KOSPI	Nearly -4%	Chip-heavy index bore the brunt of AI selloff
MSCI Asia-Pacific Index	-1% (broad gauge)	Japan and Korea both dropped more than 2%
Australia – ASX	Slipped (within MSCI decline)	Part of broad regional weakness

Note: Chinese and Hong Kong markets (Shanghai Composite, Hang Seng) were relatively more insulated — they saw more modest moves as Beijing stimulus hopes provided some support .

Most Affected Stocks & Sectors

• Semiconductor / AI-exposed stocks were the hardest hit, tracking the Wall Street AI narrative . Tech firms "bore the brunt" of selling .
• South Korean chip giants — Samsung Electronics and SK Hynix — had already been under severe pressure in prior weeks (down 8.4% and 7.5% on July 6 alone) and the July 24 selling deepened those losses .
• Japanese tech exporters took heavy losses as the Nikkei's semiconductor-heavy composition amplified the AI rout .
• Energy stocks were a relative bright spot — oil producers gained on the Brent surge, but not enough to offset broad selling .

Broader Market Dynamics

• Bond market stress: Government bond yields spiked as oil-driven inflation fears revived expectations of central bank rate hikes, creating a "sink" across both equities and fixed income .
• Currency effects: The oil shock put pressure on Asian import-dependent currencies (JPY, KRW, INR), adding to equity outflows.
• Sector rotation: Money rotated out of high-valuation AI/tech names and into energy and defensive sectors, but the sheer breadth of selling meant few places to hide .
• Context of prior weakness: This was not a one-day event — Asian tech stocks had already been in a prolonged AI-driven rout since early July, with the KOSPI losing ~9% in a single week and the Nikkei down 6.4% the prior week . The July 24 "perfect storm" accelerated existing trends.
• U.S. futures signal: Nasdaq futures slipped another 0.3% in Asian hours, indicating the selloff was expected to continue into the U.S. open .

Key takeaway: The July 24 selloff was a dual shock — oil above $100 restoked inflation/rate fears and crushed bonds, while Alphabet/Tesla earnings shattered confidence in AI spending returns. Asia's export-oriented, semiconductor-heavy markets (Japan, South Korea) bore the heaviest losses.