Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of data mining specialist Tableau Software (DATA) surged 12% today on continued enthusiasm for its long-term growth prospects.

So what: The double-digit gain comes on the heels of its 65% IPO-fueled surge on Friday, suggesting that investor interest in Tableau is only starting to grow. In fact, CEO Christian Chabot said that the IPO was done mainly to raise awareness about the company's market potential, making the past few days for Tableau all the more successful.  

Now what: Given the big data tailwinds working in its favor, Tableau is certainly worth looking into. "Business technology companies have more staying power over the long-term and are less susceptible to fashionable trends than [business to consumer] companies," Chabot said in an interview with Forbes. Of course, with such high expectations now baked into the valuation, Fools might want to wait for some of the excitement to fade before buying into that bull talk.     

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