On August 12, Lumentum rose 3.07% overnight, trading at $843.5/share, with turnover of $2.0067 million. The rally was driven by the company's fiscal Q4 earnings report that beat consensus on all key metrics, coupled with a Q1 guidance that significantly exceeded market expectations.

Lumentum reported fiscal Q4 adjusted EPS of $3.23, beating the analyst consensus of $2.97 by 8.75%, representing a 267% year-over-year increase. Net revenue came in at $1.01 billion, up 109% year-over-year and above the $987.9 million estimate. Adjusted gross margin reached 50.4%, surpassing the expected 48.8%. Both the components and systems segments delivered revenue that roughly doubled from the prior year.

More notably, the company issued fiscal Q1 guidance well above expectations, projecting adjusted EPS of $4.05 to $4.35 versus the $3.61 consensus, and revenue of $1.23 billion to $1.28 billion versus the $1.16 billion estimate — reflecting sustained robust demand from AI data center optical communications. On a GAAP basis, the company posted a $7.2 billion net loss due to a one-time non-cash debt extinguishment charge of $7.8 billion.

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