CHINA - 2025/09/27: In this photo illustration, the AbbVie logo is seen displayed on the screen of the tablet. (Photo Illustration by Sheldon Cooper/SOPA Images/LightRocket via Getty Images)SOPA Images/LightRocket via Getty ImagesAbbVie stock (NYSE: ABBV) rallied 11% in a week, largely driven by a key development that boosted the entire sector: Pfizer’s agreement to lower its drug prices for Medicaid and a White House decision to grant a three-year exemption from 100% import tariffs. Since the market sees t ...