What Is Happening With Thermo Fisher Scientific Stock?

TMO: Thermo Fisher Scientific logo
TMO
Thermo Fisher Scientific

Thermo Fisher Scientific (TMO)’s stock skyrocketed 50%, powered less by a modest 2% revenue rise and a slight dip in profit margin than by a soaring 48% jump in its P/E multiple. Behind this surge: consecutive earnings beats, bold acquisitions, and a fresh buyback plan—all hinting at renewed confidence and growth.

Below is an analytical breakdown of stock movement into key contributing metrics.

  5252025 11212025 Change
Stock Price ($) 392.9 587.5 49.5%
Change Contribution By LTM LTM
Total Revenues ($ Mil) 42,898.0 43,735.0 2.0%
Net Income Margin (%) 15.2% 15.0% -1.1%
P/E Multiple 22.8 33.8 48.3%
Shares Outstanding (Mil) 378.0 378.0 0.0%
Cumulative Contribution 49.5%

So what is happening here? The stock surged 50%, driven mainly by a 48% boost in its P/E multiple, while revenue edged up 2.0% and net margin dipped 1.1%. Let’s dive into the events behind these moves.

Here Is Why Thermo Fisher Scientific Stock Moved

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  • Q2 Earnings Beat: Q2 2025 revenue was $10.85B, adjusted EPS $5.36, exceeding estimates. Stock rose over 4% pre-market.
  • Q3 Earnings Beat & Raise: Q3 2025 revenue $11.12B, adjusted EPS $5.79, beat estimates. 2025 guidance raised. Stock up ~2%.
  • Solventum Acquisition: Acquired Solventum’s P&F business for $4B, boosting bioproduction, adding $750M revenue.
  • Clario Holdings Acq.: To acquire Clario Holdings for $8.875B, expanding digital & AI in clinical research.
  • Share Buyback Plan: Board approved a new $5.0 billion share repurchase program.

Our Current Assesment Of TMO Stock

Opinion: We currently find TMO stock unattractive. Why so? Have a look at the full story. Read Buy or Sell TMO Stock to see what drives our current opinion.

Risk: A good way to gauge risk with Thermo Fisher (TMO) is by checking how much it fell in major market sell-offs. It dropped about 41.5% in the Dot-Com crash and took an even bigger hit of around 54% during the Global Financial Crisis. The 2018 correction wasn’t as steep, but still a notable 17%. Covid led to a roughly 25% drop, and the inflation shock brought a 35% pullback. So even for a solid name like TMO, significant dips happen when markets turn sour. Quality helps, but it doesn’t make the stock immune to big sell-offs.

TMO stock may have seen strong gains recently, but investing in a single stock without detailed, thorough analysis can be risky. The Trefis High Quality (HQ) Portfolio, with a collection of 30 stocks, has a track record of comfortably outperforming its benchmark that includes all 3 — the S&P 500, S&P mid-cap, and Russell 2000 indices. Why is that? As a group, HQ Portfolio stocks provided better returns with less risk versus the benchmark index; less of a roller-coaster ride, as evident in HQ Portfolio performance metrics.