Pfizer shares jumped Tuesday after the pharmaceutical firm announced lower prices on several medications in the U.S. with President Trump at the White House.  ANGELA WEISS / AFP / Getty Images Close Key Takeaways Other stocks with exposure to the U.S. pharmaceutical industry were among the top performers in the benchmark index Tuesday. Shares of Charles River Laboratories (CRL), Bio-Techne (TECH), and IQVIA Holdings, (IQV), which provide services to support drug discovery and development processes, also g ...