Trading under the symbol ZEN, Zendesk has hit the NYSE, its $9 IPO share price square in the middle of its initial estimated range. Prior to the offering, the cloud-based help desk company had raised about $72 million through equity financings since 2008. Its revenues were up to $72 million in 2013 but it still reported a net loss of $23 million for the year. Stockholders prior to the IPO included Charles River Ventures (23.8% pre-IPO stake), Benchmark Capital (18.2%) and Matrix Partners (8.5%), among others. Zendesk ended its first day of trading at $13.43, up 49%.