Top Headlines: Greifeld Talks Blotched IPO

Nasdaq CEO Robert Greifeld blames technical issues with Facebook's IPO on "arrogance" by Nasdaq employees

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Shake Shack's Secret Ingredient Is Hospitality: Knapp
33:18 - Jan. 30 -- Malcolm Knapp, president of Malcolm Knapp Inc., and Bloomberg Intelligence's Jennifer Bartashus discuss Shake Shack's IPO and expansion with Bloomberg's Alix Steel on "Street Smart."
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