Q1
KLA Corporation fiscal Q1 2027: revenue up 29% to $4.14B, operating margin widens to 45%
KLA Corporation's fiscal Q1 2027 revenue rose 28.9% to $4.14B and diluted EPS 38.8% to $1.18 as AI-driven process-control demand outran a 10.7% rise in operating costs; it guides December-quarter revenue to $4.7B ± $200M.