Asian Shares Slide as Alphabet’s Revenue Miss Rekindles AI Cost Fears

Asian equities moved lower Thursday as technology earnings revived concern over the cost of artificial-intelligence investment, with Alphabet’s after-hours decline adding pressure to markets across the region.

Alphabet fell nearly 10% in after-hours trading after its third-quarter revenue missed expectations across its core divisions. The results renewed concern about the expense of the industry’s AI push.

South Korea’s KOSPI lost about 6% Tuesday and triggered a five-minute program-trading halt during a technology and semiconductor selloff. The earlier regional slide also included a 2.4% decline in the MSCI Asia-Pacific index excluding Japan, a 2.6% drop in Japan’s Nikkei 225 and a 2% decline in Taiwan’s weighted index.