$DATA is one of biggest losers #stocks today. read more:

Tableau Software, Inc. Class A (symbol: DATA) was one of the worst losers
of the trading day today (2015-07-29), losing -10.69%. The number of shares
that changed hands was 11,058,815, or about 11 times the average daily
volume in the stock.
The closing price was $113.49, amounting to a market cap of $8,070,000,000,
about -13.59% off the highest price in the last 12 months. The stock has
been trading at a range between $57.89 and $131.34.
DATA is in the Computer Software: Prepackaged Software industry, part of
the Technology sector. It first went public in 2013.
Looking at its valuation, the stock is now trading at 5404.29 times
earnings.