Is Twitter Really Worth $9 Billion?

Jan. 29 (Bloomberg) -- Spark Capital General Partner Mo Koyfman talks about the valuation of Twitter and his investment strategy. He speaks on Bloomberg Television's "Market Makers." (Source: Bloomberg)

Full Show: Bloomberg Best (09/30)
17:43 - A review of the week's top business stories from the U.S., Europe and Asia. (Source: Bloomberg)
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