Live: Will Lumentum's Q4 Earnings Tonight Extend Its 600% 1-Year Rally?

Lumentum Holdings (NASDAQ:LITE) reports Q4 FY2026 earnings after the close today at 4:00 PM ET, with investors looking to see whether its 600%+ one-year rally is supported by faster fundamentals. The stock has surged on AI optical demand, but the article notes expectations are unusually high. In the prior quarter, Lumentum posted revenue of $808.4 million (+90.12% year over year) and non-GAAP EPS of $2.37, beating estimates. Systems revenue rose 121.1%, and non-GAAP operating margin increased 700 basis points sequentially to 32.2%, though shares fell 5.06% after the print. Key watch items include gross margin, an EML supply-demand gap “greater than 30%,” and supply plans to increase 50% year over year by the December quarter.