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？

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

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.