Pre-Market Gainers; United Rentals up 9%

United Rentals URI +9.07% after reporting upbeat earnings yesterday. Abbott Laboratories ABT +7.51% after the company announced it will split into two separate companies. Intuitive Surgical ISRG +6.72% after reporting upbeat earnings yesterday. Apollo Group APOL +6.76% after reporting upbeat earnings this morning. Rubicon Minerals RBY +5.06% after announces 12 month, C$55M development and exploration program, Phoenix project, Red Lake, Ontario