Lam Research is trading 3.00% up at $338.38 on October 1, primarily amid sector-wide chip optimism after Micron reported blockbuster results and strong demand for AI memory. - Reuters reported Micron’s results helped push technology-heavy markets higher following an overnight rally in chip stocks. - No clear Lam Research-specific catalyst was identified; broader market indices were slightly lower in the supplied context, while rising yields remained a headwind.