With a $27 billion acquisition of Slack, Salesforce sets its sights on Microsoft. Jim Gillies shares why Slack shareholders should be happy with the deal, and analyzes why Blackberry has been on a tear lately. Plus, we dip into the Fool Mailbag to discuss early morning trading hours and what negative equity means for investors.
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Holiday music - \u201cSnow\u201d by Leslie Odom Jr.