Fundamentally speaking, rising earnings estimates and the consequent rating upgrade for Gorman-Rupp imply an improvement in the company's underlying business. Investors should show their appreciation for this improving business trend by pushing the stock higher. Harnessing the Power of Earnings Estimate Revisions Investors might want to bet on Gorman-Rupp (GRC) , as it has been recently upgraded to a Zacks Rank #2 (Buy). This upgrade primarily reflects an upward trend in earnings estimates, which is one of ...