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Shares of CommScope Holding Co.   (COMM - Get Report)  rose 8.4% after the communications network builder announced earnings estimates that were better than expected.

CommScope reported estimated net sales of $1.045 billion to $1.07 billion for the fourth quarter, up from its earlier guidance issued in November of $1.015 to $1.065 billion.

The company now pegs full-year net sales for 2018 at $4.555 billion to $4.580 billion, up from its guidance of $4.525 billion to $4.575 billion.

The stock price of the Hickory, N.C.-based communications company rose to $20.63.

Eddie Edwards, CommScope's president and chief executive officer, cited in a press release "stronger than expected sales volumes, favorable product and geographic mix," as well as cuts aimed at aligning "the company's cost structure with the current market environment."

He predicted similar, "modest growth," for 2019.

"For 2019, we continue to expect modest growth and relatively stable year-over-year results, which reflect anticipated cautious spending patterns by large North American operators," Edwards said.

CommScope will release its official fourth quarter earnings and full-year results for 2018 before the market opens on Feb. 21. A conference call with analysts is planned for 8:30 a.m.

The company is also moving ahead with efforts to wrap up its acquisition of Arrris International PLC (ARRS) , Edwards noted.

CommScope in early November announced a $7.4 billion for Arris, which focuses on enabling "advanced video experiences and constant connectivity across a variety of environments" by combining "hardware, software and services to enable," the company states.