Research In Motion Tumbles 19 Percent
Shares of Research In Motion Ltd., the Canadian maker of BlackBerry handheld devices, tumbled by 19 percent last Friday as the company announced disappointing quarterly earnings, and a meek sales forecast.

The Canadian company Research in Motion's Facility in Waterloo, Ontario. RIM, maker of Blackberry smartphones, has announced layoffs and share buybacks reporting a drop in quarterly earnings Thursday, June 16. Geoff RobinsAFP/Getty Images
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