IPO window is shutting, and that's a good thing By: CNBC.com News April 25, 2014 at 15:50 PM EDT Red-hot IPO market shows signs of cooling down. No longer are we seeing IPOs price at the high end of the range and get a big first-day pop. Read More >> Related Stocks: A10 Networks Inc Amber Road Inc Castlight Health Inc Grubhub Ord Shs Paylocity Holdings Corp Q2 Holdings Inc Sabre Corp Varonis Systems Inc Zoe's Kitchen Inc