MRK vs BLK Comparison

Merck makes pharmaceutical products to treat several conditions in a number of therapeutic areas, including cardiometabolic disease, cancer, and infections. Within cancer, the firm's immuno-oncology platform is growing as a major contributor to overall sales. The company also has a substantial vaccine business, with treatments to prevent pediatric diseases as well as human papillomavirus, or HPV. Additionally, Merck sells animal health-related drugs. From a geographical perspective, just under half of the company's sales are generated in the United States.

BlackRock is the largest asset manager in the world, with $12.528 trillion in assets under management at the end of June 2025. Its product mix is diverse, with 54% of managed assets in equity strategies, 25% in fixed income, 8% in multi-asset classes, 8% in money market funds, and 5% in alternatives. Passive strategies account for two-thirds of long-term AUM, with the company's ETF platform maintaining a leading market share domestically and on a global basis. Product distribution is weighted more toward institutional clients, which, by our calculations, account for around 80% of AUM. BlackRock is geographically diverse, with clients in more than 100 countries and more than one-third of managed assets coming from investors domiciled outside the US and Canada.