Chipmakers and AI-linked stocks climb after Nvidia results, tariff block

Shares of chipmakers and AI-linked stocks climb premarket as bellwether Nvidia's NVDA.O sales hit from China export curbs was not as bad as feared

NVDA beats quarterly sales expectations as customers stockpiled its AI chips, but U.S. curbs on China exports are set to slice off $8 billion in sales from the company's current quarter

Nvidia shares jump 6% before the bell

Among semiconductor stocks, Marvell Technology MRVL.O climbs 6.7%, Broadcom AVGO.O, AMD AMD.O, Arm ARM.O and Micron Technology MU.O all gain between 2.4% and 3.8%

AI server maker Dell DELL.N up 1.8% and Super Micro Computer SMCI.O rises 3.9%

Vertiv Holdings VRT.N, which designs and builds data center infrastructure, gains 5.5%

Power companies, which are expected to see a surge in demand from energy-intensive data centers needed to develop AI technology, also gain; Constellation Energy CEG.O up 2.5%, Vistra VST.N up 3%

Markets broadly higher after a U.S. federal court blocked President Donald Trump's "Liberation Day" tariffs from going into effect .N

Philadelphia chip index .SOX down 2.9% YTD, compared with 0.1% gain in S&P 500 .SPX