NEW YORK ( TheStreet) -- Netflix ( NFLX) reported yet another quarter of record subscriber growth and earnings that surpassed estimates, but soft revenue results are sent shares tumbling in after-hours trading. Netflix also upped its full-year earnings, revenue and subscriber guidance. The company now expects to earn $2.58 to $2.86 a share, from its previous estimate of $2.41 to $2.63 a share. Management anticipates revenue in the range of $2.14 billion to $2.16 billion, up from $2.11 billion to $2.16 billion, and said it will end the year with 17.7 million to 18.5 million subscribers. The DVD rental company reported earnings of $43.5 million, or 80 cents a share, a 34% surge from a profit of $32.4 million, or 54 cents, in the year prior. This is significantly higher than analysts' estimates of 70 cents.
Netflix ended the quarter with 15 million subscribers, representing a 42% gain from a year ago. Despite the strong results and indications that momentum is on its side, results were overshadowed by weak sales of $519.8 million, which were shy of Wall Street's forecast of $524 million. The weak revenue results stem from cheaper monthly plans. Netflix's average monthly subscriber bill last quarter was $12.29, down a dollar from $13.29 a year ago. Still, margins are improving, as more users chose to stream movies rather than order discs. Shares of Netflix are plunging 8.7% to $109.89 after the close. -- Reported by Jeanine Poggi in New York.