NeoPhotonics granted the underwriters an option to purchase up to about 1.1 million additional shares to cover any overallotments.
Another big IPO gainer on Friday was California-based mobile medical software maker Epocrates, (EPOC) which surged 14.4% to $25.61 Friday. That's about 60% above its offering price.
The company went public on Feb. 2.
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