Slack shares surge 50% over reference price in market debut - CNBC

Slack shares surge 50% over reference price in market debut  CNBCSlack is latest tech company to go public, with a twist  The Associated PressSlack Stock Jumps On First Trading Day, Company Value Tops $20 Billion  NPRSlack going public in a red-hot IPO market, with a twist  CNBCSlack Is Going Public, Whatever  BloombergView full coverage on Google News