DA Davidson Upgrades Otter Tail (OTTR) to Neutral, Shares Moving Higher Apr 15, 2011 11:58AM
DA Davidson Downgrades Otter Tail Corporation (OTTR) to Underperform Feb 10, 2011 11:04AM
DA Davidson Upgrades Otter Tail Corporation (OTTR) to Neutral Nov 16, 2010 11:42AM
DA Davidson Upgrades Otter Tail (OTTR) to Buy Oct 23, 2008 11:11AM
DA Davidson Downgrades Otter Tail (OTTR) to Underperform May 2, 2008 04:21PM