* Third-quarter EPS $1.10 vs $0.69 year earlier
* Revenue up 41 pct at $3.92 bln
* Adds 4.4 mln new subscribers, total base about 36 mln
* Forecasts Q4 EPS $1.23-$1.31, revenue $4.2 bln (Adds details. In U.S. dollars unless noted)
OTTAWA, Dec 17 (Reuters) - BlackBerry maker Research In Motion RIM.TO RIMM.O reported a 58 percent jump in quarterly profit on Thursday, as sturdy demand from holiday shoppers helped fend off growing competition, sending its shares sharply higher.
Profit rose to $628.4 million, or $1.10 a share, in its third quarter ended Nov. 28, from $396.3 million, or 69 cents, a year earlier.
Revenue increased 41 percent to $3.92 billion.
The results topped analysts’ expectations for a profit of $1.04 a share and revenue of $3.78 billion, according to Thomson Reuters I/B/E/S.
RIM, which faces growing competition from such devices as Apple’s (AAPL.O) iPhone and Motorola’s MOT.N Droid, added about 4.4 million subscribers in the quarter, for a total of about 36 million customers.
Waterloo, Ontario-based RIM forecast fourth-quarter earnings per share of $1.23 to $1.31, revenue of $4.2 billion to $4.4 billion. It sees gross margin of about 43.5 percent and expects to add 4.4 million to 4.7 million new subscribers..
Before RIM issued that forecast, analysts had expected earnings per share of $1.12 and revenue of $4.1 billion.
RIM shares jumped 12.2 percent to $71.20 in extended trading on Thursday. ($1=$1.07 Canadian) (Reporting by Susan Taylor; Editing by Frank McGurty)