Asian markets’ reliance on AI boom raises ‘bubble’ fears
Some investors grow concerned that region’s markets could be hit by downturn in US tech sector
Some investors grow concerned that region’s markets could be hit by downturn in US tech sector

Decline in Asian markets led by companies most exposed to demand for artificial intelligence

Cautious comments from top bank executives add to jittery sentiment on Wall Street

Investor concerns over lofty valuations for artificial intelligence companies hits sentiment

Investors hunt for winners in market that for years has lagged behind Wall Street’s rally

The surge in investment may end up looking more like previous cycles of over-optimism and heavy capital spending

Trading in insurance-like products that protect against tech company defaults is booming