Illumina Inc. shares surged in the extended session Tuesday after the DNA sequencing company's quarterly revenue topped Wall Street estimates. Illumina shares rallied 9.5% to $188.50 after hours. The company reported second-quarter net income of $128 million, or 87 cents a share, compared to $120 million, or 82 cents a share, in the year-ago period. Adjusted earnings were 82 cents a share. Revenue rose to $662 million from $600 million in the year-ago period. Analysts surveyed by FactSet had estimated 82 cents a share on revenue of $642.2 million. For the year, Illumina estimates adjusted earnings of $3.60 to $3.70 a share. Analysts expect $3.63 a share.
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