📝 Executive Summary
Merck stock has surged 87% over the past year, significantly outperforming peers like Johnson & Johnson and Pfizer. While revenue growth remains steady at 4.6%, investors are aggressively repricing the company based on successful clinical trial results and a robust pipeline of new products. Management is actively preparing for the 2028 patent cliff for its flagship drug, Keytruda, by accelerating the development of new commercial opportunities.