U.S. markets were looking to finish a volatile week on a positive note at Friday's Opening Bell. For the week, the benchmarks are headed for solid gains. Earnings reports are driving stocks like Nike (NKE) higher. The athletic retailer reported after Thursday’s close, beating analyst estimates. Nike sales were slightly lower on the strong U.S. dollar. Currency headwinds is being blamed for Tiffany's (TIF) lackluster results. The high-end jeweler is lower in early trading after missing same-store estimates. Amazon (AMZN) just got one step closer to launching ‘Prime Air.’ The Federal Aviation Administration has approved the e-commerce giant to test drones in Washington State.