http://techcrunch.com – Data visualization software company Tableau Software, going by the symbol “DATA,” will start trading tomorrow on the New York Stock Exchange at $31 per share, up from earlier today when the company said it would trade in the $28 to $30 range. Tableau will offer 8.2 million shares of its Class A common stock, up from the 7.2 million it previously said it would offer. (IT news)