BlackBerry shares drubbed, just days before key results

TORONTO (Reuters) - Reports of a lackluster launch of its pivotal new smartphone in the U.S. market cost BlackBerry an influential downgrade on its stock on Monday and a 4 percent drop in its share price, just days ahead of quarterly results that will offer the first concrete gauge of how its new phone is being received. The results, due on Thursday, will offer a glimpse of sales of the new Z10 device in Britain, Canada and several other markets, where it has been available for more than a month. Sales in the vital U.S. ...

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