Asian Equities Slide as Global Tech Selloff Intensifies

what happened

Reuters reports that mainland Chinese and Hong Kong equities dropped in early Friday trading, following a global retreat in technology shares. Fears of stricter oversight of artificial intelligence and a cooling of the sector weighed on sentiment. The CSI 300 and Shanghai Composite each lost 1.5%, while the Hang Seng declined 1.6%. Startup board Star 50 and the mainland AI index both fell more than 5% at the open before recovering some ground. The Hang Seng Artificial Intelligence Index slid around 7%.

The selloff began in the US, where the Nasdaq posted its sharpest single-day decline since the tariff announcement known as 'Liberation Day' in April 2025. Investors pulled back on worries about heavier AI scrutiny after Democrats gained ground in the US midterm elections, erasing trillions of dollars in market value. In Asia, the pressure spread: South Korea's KOSPI plunged over 8%, Japan's Nikkei dropped 5%, and the KOSPI's decline triggered exchange circuit breakers that halted trading for 20 minutes.

why it matters

For investors, the episode shows how heavily the valuations of Asian and American tech companies rely on expectations for AI. Regulatory uncertainty can compress valuation multiples quickly, so the next phase will depend on whether the policy debate turns into concrete rules. Indexes with heavy exposure to chipmakers and AI firms are the most sensitive to this kind of news.

market impact

Asian tech and AI stocks: fears of tighter AI regulation and the Nasdaq rout pressure share prices

• ▼Hang Seng AI index pressure down — fears of tighter AI regulation hit investor sentiment
• ▼KOSPI pressure down — a global tech rout triggered steep losses and a trading halt
• ▼Nasdaq pressure down — a tech sector slump driven by AI scrutiny concerns

instruments