Parnassus Investments released its third-quarter 2025 investor letter, noting the S&P 500’s surge driven by investor optimism. The Parnassus Core Equity Fund (Investor Shares) returned 2.57% in the quarter, trailing the index’s 8.12% return. Thermo Fisher Scientific Inc. (NYSE:TMO) was highlighted as a stock pick, with shares closing at $575.70 on December 22, 2025.

Thermo Fisher Scientific Inc. (NYSE:TMO) is in 26th position on the list of 30 Most Popular Stocks Among Hedge Funds. 121 hedge fund portfolios held Thermo Fisher Scientific Inc. (NYSE:TMO) at the end of the third quarter. While the company has potential, certain AI stocks offer greater upside potential and less downside risk.

Thermo Fisher Scientific Inc. (NYSE:TMO) was a solid performer in Q3 2025, contributing to Harding Loevner Global Equity Strategy. For more investor letters from hedge funds and leading investors, visit the hedge fund investor letters Q3 2025 page.

Read more at Yahoo Finance: Favorable Results and Improved Guidance Lifted Thermo Fisher Scientific (TMO) in Q3