Facebook launch was a big success despite early signs of a very slightly weakening price. Perhaps, selling the shares at the top end was a good business tactic.
http://www.csmonitor.com/Business/new-economy/2012/0519/Facebook-IPO-Flat.-Facebook-future-Bright?cmpid=ema:nws:BizTech%2005232012&cmpid=ema:nws:NzQ4MDU4NDEwMgS2