Nvidia, Unilever and more

Source: cnbc.com cnbc.com

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Here are the companies making headlines on Wall Street ahead of the opening bell. Nvidia — The semiconductor stock dipped 1.7% as investors digested Monday's launch of new artificial intelligence chips. Several Wall Street analysts hiked their price target for Nvidia after the event. Advanced Micro Devices — The chipmaker slumped more than 3% before the bell after competitor Nvidia unveiled a new generation of AI chips at its developers conference in San Jose, California. Unilever — The consumer products maker popped 2.7% after announcing it would spin off its ice cream unit , which includes Ben & Jerry's and...