Asian equity markets mostly fell on Friday, mirroring sharp declines on Wall Street as investors grew increasingly doubtful that massive artificial intelligence spending will deliver adequate returns. Technology-heavy markets in Japan and South Korea led regional losses, with major chipmakers coming under pressure. Sentiment was further dampened as Brent crude rose above $100 a barrel amid escalating tensions in the Middle East, stoking inflation worries and strengthening expectations of tighter US monetary policy. Investors also weighed new US tariffs of 10%–12.5% on imports from most major trading partners.