⚠ Tariffs Took 100 Basis Points of MarginModerate threat

Thermo Fisher Scientific (TMO) — threat to the moat

Tariffs cost Thermo Fisher more than a point of operating margin in late 2025, and fell hardest on its instrument business.

A business that ships across borders pays whenever borders get more expensive. The 10-K cites "tariffs imposed by the U.S. on goods from other countries and tariffs imposed by other countries, on certain U.S. goods"1. On the fourth-quarter 2025 call the finance chief said the fourth-quarter adjusted operating margin of 23.6% included "over 100 basis points of headwind from tariffs and related FX"2.

Fourth-quarter 2025 adjusted operating margin (%)23.6%Margin reportedover 1.0 ptTariff and FX headwindThermo Fisher Q4 2025 earnings call
More than a point lost at the border.

Analytical Instruments felt it most. Its margin fell from 26.2% in 2024 to 23.0% in 20253, which the 10-K attributes partly to "the impacts of tariffs and related foreign exchange"4.

Tariffs are a tax the channel collects from itself. It can pass some on, but not all, and not quickly.

Currency is the other border cost. In July the company cut the currency tailwind it expected in 2026 revenue from $300 million to about $200 million5. The 10-K also records cash in China "awaiting government administrative clearance"6, a reminder that money earned abroad does not always move freely.

Thermo Fisher makes goods on both sides of the borders that tariffs cross. Its long-lived assets were $6,547 million in the United States and $5,465 million elsewhere at the end of 20257. That spread limits the damage, since some products can be made where they are sold, but it also means tariffs imposed in either direction reach part of the output.

The second quarter of 2026 suggests recovery: Analytical Instruments earned 23.0% against 18.8% a year earlier8. A return below 20% would say the cost has become permanent.

References
  1. ReportedThe 10-K cites "tariffs imposed by the U.S. on goods from other countries and tariffs imposed by other countries, on certain U.S. goods".
    Thermo Fisher Scientific Form 10-K for fiscal 2025 - Item 1A risk factors and competition. — FY2025 · publ. 26 February 2026 · source ↗
  2. ReportedOn the fourth-quarter 2025 call the finance chief said the fourth-quarter adjusted operating margin of 23.6% included "over 100 basis points of headwind from tariffs and related FX".
    Thermo Fisher Scientific fourth-quarter 2025 earnings call transcript (Motley Fool) - initial 2026 guidance, tariffs, academic and government demand, Clario's 2025 revenue and the new CFO. — Q4 2025 · publ. 29 January 2026 · source ↗
  3. ReportedIts margin fell from 26.2% in 2024 to 23.0% in 2025, which the 10-K attributes partly to "the impacts of tariffs and related foreign exchange".
    Thermo Fisher Scientific Form 10-K for fiscal 2025 - Item 1A risk factors and competition. — FY2025 · publ. 26 February 2026 · source ↗
  4. ReportedIts margin fell from 26.2% in 2024 to 23.0% in 2025, which the 10-K attributes partly to "the impacts of tariffs and related foreign exchange".
    Thermo Fisher Scientific Form 10-K for fiscal 2025 - Item 1A risk factors and competition. — FY2025 · publ. 26 February 2026 · source ↗
  5. ReportedIn July the company cut the currency tailwind it expected in 2026 revenue from $300 million to about $200 million.
    Thermo Fisher Scientific second-quarter 2026 earnings call transcript (Motley Fool) - organic growth by segment and market, China, the raised 2026 guidance, leverage, adjusted ROIC and the microbiology sale. Figures from the transcript body, not the summary block - 2026 guidance, capital deployment, leverage and adjusted ROIC. — Q2 2026 · publ. 23 July 2026 · source ↗
  6. ReportedThe 10-K also records cash in China "awaiting government administrative clearance", a reminder that money earned abroad does not always move freely.
    Thermo Fisher Scientific Form 10-K for fiscal 2025 - Item 1A risk factors and competition. — FY2025 · publ. 26 February 2026 · source ↗
  7. ReportedIts long-lived assets were $6,547 million in the United States and $5,465 million elsewhere at the end of 2025.
    Thermo Fisher Scientific Form 10-K for fiscal 2025 - financial statements: income, cash flow, repurchases, debt and equity. — FY2025 · publ. 26 February 2026 · source ↗
  8. ReportedThe second quarter of 2026 suggests recovery: Analytical Instruments earned 23.0% against 18.8% a year earlier.
    Thermo Fisher Scientific second-quarter 2026 results, Form 8-K exhibit 99.1 - revenue, organic growth, segment income and margins, free cash flow and the balance sheet. — Q2 2026 · publ. 23 July 2026 · source ↗
Sources
Generated September 28, 2026