TSMC (TSM) stock advances premarket to $427.49 as the chip king targets a 30% power reduction by 2028. See why NVIDIA's massive Vera Rubin ramp keeps targets at $480.

Taiwan Semiconductor (TSM) hits a new 52-week high as NVIDIA boosts spending signals and highlights Taiwan's massive AI role.

AMSTERDAM, May 28 : A senior TSMC executive said on Thursday that surging electricity demands from AI are making energy efficiency rather than computing power the main constraint…