LinkedIn got crushed today in a very similar fashion on weak earnings. So, it's not just Tableau. In fact, the whole tech sector is starting to show some weakness which can be seen from the NASDAQ's recent performance. A lot of last year's tech-related IPOs have also performed terribly (e.g. Etsy, Box, Match, First Data, Square). Especially recently a lot of the previous momentum darlings like Apple, Amazon and Netflix have started rolling over, too. Facebook and Google were holding much better after strong earnings, but even those are starting to show signs of weakness now. Seems like we might be at the end of the phase of explosive growth over the last couple of years.