# Pfizer shares were down 2% at $27.37 at the time of publication on Tuesday.

*business · news · 2026-04-07 · Benzinga*

## Key points

- A potential 100% tariff on drugmakers without pricing deals could be announced as soon as Thursday.
- Pfizer will stop monitoring participants for COVID-19 symptoms in its vaccine trial after April 3.
- CDC's pause on diagnostic testing for 27 diseases complicates near-term COVID vaccine demand visibility for Pfizer.
- Section 232 national-security investigation is cited as the basis for possible new drug tariffs affecting Pfizer.
- Pfizer's next earnings report is expected May 5, with EPS estimated at 74 cents, down year-over-year.

**Companies:** Pfizer
**Countries:** United States

[Read the full story on Benzinga](https://www.benzinga.com/trading-ideas/movers/26/04/51688191/why-is-pfizer-stock-dropping-tuesday)

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