BlackBerry Gains 11% on Strong BB10 Intro

Feb. 4 (Bloomberg) -- Erik Schatzker reports on the rise in BlackBerry stock. He speaks on Bloomberg Television's "Market Makers." (Source: Bloomberg)
Are Global Markets Overreacting to China Slowdown?
04:51 - Jones Trading Chief Market Strategist Michael O'Rourke discusses turmoil and volatility in the markets. He speaks on "Bloomberg Markets." (Source: Bloomberg)
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