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Image by Getty Images via @daylife By Derek Klobucher, Finanical Services Writer and Editor, Sybase an SAP Company If you can’t run with the big dogs, stay on the porch. It’s one of those idioms that exalt the conspicuously massive, enticing us to celebrate the all-or-nothing spirit of those who dominate. But big isn’t as easy as it used to be. The U.S. Securities and Exchange Commission is looking into the possibility that some of the big exchanges may have unfairly benefitted their titan....