CoreWeave shares sank 10% in premarket trading on Wednesday after the Nvidia-backed company posted a bigger-than-expected loss, raising doubts about its ability to keep costs under check amid robust AI demand.

Here are some of the stocks making notable moves in Wednesday's premarket action: CoreWeave shares are diving 9% after the AI cloud computing company delivered [a steeper loss than analysts expected](

CoreWeave’s shares dropped as much as 9 per cent in after-hours trading on Tuesday, after the artificial intelligence data centre operator reported bigger second-quarter net losses than Wall Street expected.