The direct listing is working for Slack. Shares of the popular messaging app are soaring on their wall street debut. The stock opened for trading at $38.50. That's 48 percent above the reference price of $26 dollars set late Thursday. At current levels, the company is valued at more than $20 billion dollars. We spoke to John Meyer, Managing Partner at Starship Capital and Co-Founder of Homebound about his outlook on the listing.