Core Viewpoint - Thermo Fisher Scientific Inc. (TMO) is recognized as one of the best stocks to buy in the S&P 500, with a consensus Strong Buy rating from analysts and a one-year price target indicating a potential upside of 12% [1]. Analyst Updates - Wells Fargo raised its price target for TMO to $675 from $635, citing improved clarity on U.S. pharmaceutical policies and positive growth projections [2]. - Citigroup upgraded TMO's rating to Buy from Neutral and increased its price target to $660 from $580, driven by favorable trends in onshoring and pharmaceutical spending [3]. Company Overview - Thermo Fisher Scientific is a leading provider of life sciences solutions, laboratory products, diagnostics, analytical instruments, and biopharma services, with an 8% gain year-to-date in 2025 [4].