Ultimate Stock Watch List for The Supreme Court's Health Care Ruling

On Thursday the US Supreme Court is expected to rule on the constitutionality of the Patient Protection and Affordable Care Act. The following is a list of stocks that could see volatility following the Court's decision: Abbott Laboratories ABT Alliance HealthCare Services AIQ AMN Healthcare Services AHS Amylin Pharmaceuticals AMLN Arena Pharmaceuticals ARNA Avanir Pharmaceuticals AVNR Cardinal Health CAH CIGNA Corporation CI Community Health Systems CYH Covidien COV CVS Caremark CVS GlaxoSmithKline GSK HCA Holdings HCA Health Net HNT Kindred Healthcare KND Magellan Health Services MGLN McKesson Corporation MCK Medco Health Solutions MHS Merck & Co MRK National HealthCare NHC Peregrine Pharmaceuticals PPHM Pfizer PFE Regeneron Pharmaceuticals REGN Skilled Healthcare SKH Somaxon Pharmaceuticals SOMX Tenet Healthcare THC Teva Pharmaceutical TEVA UnitedHealth Group UNH Universal Health Services UHS Walgreen Company WAG Watson Pharmaceuticals WPI WebMD Health WBMD WellCare Health Plans WCG