Piper Jaffray analyst Kevin Barker continues to view Santander Consumer USA Holdings (SC) as a top pick for 2018 despite Fiat-Chrysler's (FCAU) intention to create a finance captive. The recent weakness in the stock presents a "great opportunity" as the separation of the FiatChrysler business from the core Santander Consumer would be accretive to operating margins, Barker tells investors in a research note. He believes the company could recognize a gain in a potential buyout of Chrysler Capital. The analyst keeps an Overweight rating on Santander Consumer with a $25 price target.