The semiconductor sector rallied sharply in pre-market trading, driven by strong quarterly results and a raised full-year revenue forecast from AI infrastructure firm CoreWeave. The positive report eased market concerns regarding AI compute demand and data center return on investment, providing significant support for chipmakers. This news reversed the negative sentiment from the previous session, which was impacted by hotter-than-expected inflation data, with memory chip stocks like Western Digital and Micron Technology seeing notable gains.