World stocks dipped on Tuesday as renewed AI concerns hit high-flying chipmakers and drove investors to the safety of government bonds, while big Wall Street banks kicked off the US quarterly reporting season.
Reports of progress by Chinese memory chip maker CXMT fuelled concerns about increased competition from China's AI players, while Broadcom CEO Hock Tan likened some of the flows into the broader AI sector to "casino gambling".
The MSCI's main world stocks index dipped 0.13%, with tech-heavy stock markets of Asia and the United States feeling the brunt of the selloff.
Investors have ridden the AI wave in the past four years as massive spending powered corporate profits and economic growth, although worries over concentration risks and whether a payoff will come soon enough have weighed.
US Nasdaq futures fell 0.7%, with memory chipmaker Micron Technology down 3.8% in premarket trading and Nvidia dropping 0.8%.