We recently compiled a list of the 12 Most Undervalued Dow Stocks to Buy According to Analysts. Merck & Co., Inc. is one of them. Merck & Co., Inc. (NYSE:MRK) tops our list for being one of the most undervalued stocks. It is a global healthcare leader in pharmaceuticals, vaccines, biologics, and animal health products. A major recent development is the FDA approval of KEYTRUDA QLEX, a new subcutaneous injectable formulation of the company’s blockbuster cancer therapy Keytruda, on September 19, 2025. This ...