Feb 28 (Reuters) - Spok Holdings Inc SPOK.O :
* SPOK REPORTS FOURTH QUARTER AND FULL YEAR 2017 OPERATING
RESULTS; TOTAL REVENUE GROWTH FOR THIRD SEQUENTIAL QUARTER
* Q4 LOSS PER SHARE $1.07
* Q4 REVENUE $43.8 MILLION VERSUS $44.2 MILLION
* Q4 EARNINGS PER SHARE $0.14 EXCLUDING ITEMS
* AUTHORIZES $10 MILLION STOCK REPURCHASE PROGRAM
* EXPECTS TOTAL REVENUE TO RANGE FROM $161 MILLION TO $177
MILLION
FOR 2018
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((Reuters.Briefs@thomsonreuters.com;))