Dollar Tree Loses 18% in 1.5 Seconds

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Insight on Dollar Tree’s “flash crash,” with the FMHR traders. Meanwhile Wal-Mart slips in post earnings and Deborah Weinswig, retail analyst at Citigroup, offers insight.

Melissa Lee anchors a fast-paced discussion among four professional Wall Street traders. An hour after the bell Fast Money hosts one of the best trading discussions of the day.

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