On August 12, Lumentum rose 11.32% in regular trading, trading at $905.35/share, with turnover of $1.107 billion.

The rally was driven by the company's fiscal Q4 results and fiscal Q1 guidance both significantly exceeding Wall Street expectations. Q4 net revenue reached $1.01 billion, up 109% year-over-year and above the $988 million consensus; adjusted EPS came in at $3.23, beating the $2.97 estimate by 8.75%; non-GAAP gross margin expanded to 50.4%, surpassing the 48.8% expectation.

More critically, the company's fiscal Q1 guidance materially exceeded forecasts, projecting revenue of $1.23-1.28 billion (mid-point roughly 8% above the $1.16 billion consensus) and adjusted EPS of $4.05-4.35 (mid-point approximately 16% above the $3.61 estimate). Management cited persistently strong AI data center optical interconnect demand and characterized 2027 demand visibility as \"incredibly strong.\" Following the report, Citi raised its target price to $1,200 and Morgan Stanley lifted its target to $1,000.

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