Morning Movers: Yum Brands, Best Buy, BlackBerry

March 12 (Bloomberg) -- Bloomberg's Tom Keene, Scarlet Fu and Sara Eisen highlight the news you need to follow for today's trading. They speak on Bloomberg Television's "Bloomberg Surveillance."

Snap Roadshow Can't Shake Question of User Growth
28:08 - Snap Inc. continues its roadshow as investors question user growth ahead of next week's planned IPO. Bloomberg's Alex Barinka reports on "Bloomberg Daybreak: Americas." (Source: Bloomberg)
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