"Cramer's Lightning Round: Why Merck is a Must-Buy Stock"

CNBC's Jim Cramer provided his insights on several stocks during his Lightning Round segment. He recommended buying Merck, stating that the company is performing well. Cramer suggested holding onto Texas Instruments, but cautioned that the company's industrial sector is struggling. He also advised buying Vertiv and Algonquin Power & Utilities, while expressing disappointment in Corning's recent quarter.