Why Is Lumentum (LITE) Up 6.1% Since Last Earnings Report?

Lumentum (LITE) reported Q4 fiscal 2026 earnings of $3.23 per share, up 267% YoY and beating estimates by 8.03%, with revenues surging 109.3% to $1.01 billion. Strong demand for cloud and AI products, particularly 1.6T transceivers and optical components, drove growth. The company posted record gross margins of 50.4% and operating margins of 36.6%, with guidance for Q1'27 revenues between $1.225-$1.275 billion. Lumentum has a Zacks Rank #1 (Strong Buy) rating with upward estimate revisions.