Eli Lilly reached a $1 trillion market capitalization on Friday, the first health-care company in the world to join the exclusive club dominated by tech firms. The drugmaker’s stock inched about 1% higher Monday, trading above the $1 trillion threshold. Eli Lilly is the second nontechnology company to reach that market cap milestone in the U.S. after Warren Buffett’s Berkshire Hathaway . The company’s rise came as shares of its chief rival in the GLP-1 drug space, Novo Nordisk , tumbled about 6% in U.S. trading Monday. While Novo Nordisk’s stock fell after disappointing Alzheimer’s trial results, the drugmaker’s market...