ServiceNow (NOW -8%) tumbles after receiving a downgrade to Sell from UBS. The provider of...

|About: ServiceNow (NOW)|By:, SA News Editor

ServiceNow (NOW -8%) tumbles after receiving a downgrade to Sell from UBS. The provider of cloud-based systems management software has been flying high since going public in June - even after today's drop, the company trades at a lofty 19x estimated 2012 revenue.