NEW YORK (TheStreet) — Stamps.com lost 6.9% to $35.97 Friday after posting mixed results for the fourth quarter and a weak outlook for 2014. In its fourth quarter results Stamps.com posted earnings of 61 cents a share, beating analyst estimates of 54 cents a share by 7 cents. The company missed revenue estimates, however, posting revenue of $32.4 million, compared to analyst estimates of $34 …
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