Pfizer stock (PFE): what moves it and when to watch
A drug company's future is written in its patents. Pfizer's biggest medicines lose protection over the next few years, and the stock watches every step of that clock.
This page explains how the stock tends to move. It isn't a recommendation to buy or sell it.
At a glance
| Item | Pfizer (PFE) |
|---|---|
| What it is | A large US drug company: medicines and vaccines for heart disease, cancer, infections and more |
| Where it trades | New York Stock Exchange, ticker PFE |
| Indexes it's in | S&P 500. It left the Dow in August 2020 |
| Earnings | 4 times a year, before the open, usually late January or early February, then late April, July and October |
| What moves it most | Trial results, FDA decisions, patent expiries, drug-pricing policy, guidance |
| How it tends to move | Often slow, with sharp gaps on trial or policy news |
| Regular hours | 9:30 am–4:00 pm ET, plus pre-market and after-hours sessions |
What the company does
Pfizer discovers, tests and sells medicines. Some well-known ones are the blood thinner Eliquis (sold with Bristol Myers Squibb), the cancer drug Ibrance and its COVID vaccine with BioNTech.
New drugs take years of trials. A patent gives a company a period with no copycat versions. When it ends, cheaper generic versions arrive and sales of that drug usually drop fast.
What moves it
- The patent clock. Pfizer has said several big drugs, including Eliquis, Ibrance and Xtandi, lose patent protection between 2026 and 2028. Investors watch how fast new drugs can fill the gap.
- Trial results. A drug that works (or doesn't) in a big trial can move the stock overnight.
- FDA decisions. Approvals, rejections and safety warnings. The FDA is the US drug regulator.
- Deals. Pfizer bought cancer-drug maker Seagen in 2023 and closed a deal for obesity-drug developer Metsera in November 2025. Buyouts can move the stock both ways.
- Drug-pricing policy. Government moves on what drugs cost in the US can hit the whole sector.
- Earnings and guidance. See Earnings report and Guidance.
- Dividend. Pfizer pays a quarterly Dividend; changes get close attention.
When it's busiest
- Earnings mornings: results come out before 9:30 am ET.
- Medical conference days: big trial data often comes out at major medical meetings, sometimes on a weekend.
- 9:30–10:30 am ET: the open, when overnight trial or FDA news is priced in.
US stock hours stay 9:30 am–4:00 pm ET all year. Extended-hours times depend on your broker.
Its personality
- Quiet, then sudden. PFE can drift for weeks, then gap on one headline.
- Binary news. A trial either hits its goal or it doesn't. There's little middle ground in the first reaction.
- Sector moves. Pricing headlines often hit every big drug stock at once.
- Long themes. The patent story plays out over years, so the weekly chart tells a lot.
Reading it with our method
Start on the weekly chart. Mark the last places price turned around. Are the highs and lows stepping up or stepping down? For a stock tied to a multi-year story, the big chart is your anchor.
Then use the daily chart for entries. Only a candle body closing past a level counts. On news days, tails can be huge.
Set your stop from the chart, then size from the stop. Example: your stop is $1 below your entry and your plan risks $40. That's $40 ÷ $1 = 40 shares. The position size calculator does the math. A math example, not a promise. Any trade can lose, and a gap on trial news can skip your stop.
Know the dates. Earnings days, FDA decision dates and big medical meetings are often public ahead of time. Many traders cut size or step aside around them.
Common mistakes
- Trading a trial result you can't judge. Medical data is complex. Let the chart show the market's verdict first.
- Holding big size into a known decision date. See gap trading explained.
- Buying "because it's cheap." A low price per share or a high dividend doesn't tell you direction.
- Forgetting the sector. A pricing headline can drop PFE with no Pfizer news at all. See news trading explained.
Questions
Is Pfizer in the Dow Jones?
No. Pfizer was removed from the Dow Jones Industrial Average in August 2020. It's in the S&P 500.
What is Pfizer's patent cliff?
It's the period, roughly 2026 to 2028, when several of Pfizer's biggest drugs lose patent protection. Cheaper generics can then compete, which usually cuts sales of those drugs.
When does Pfizer report earnings?
Four times a year, before the US market opens, usually in late January or early February, and in late April, July and October. Check Pfizer's investor site for exact dates.
Why does Pfizer stock gap on news?
Trial results and FDA decisions often come out outside market hours. They can change a drug's future in one announcement, so the price adjusts all at once.
Want the next step? We'll walk you through it.
Four free lessons by email, one every few days — each with a 10-minute exercise on a real chart.
Send Me the Free Lessons 4 short emails · No spam · Unsubscribe anytimeOr see the whole method, step by step:
See What’s Inside the Course Try everything free first. Decide when you're ready. · Open the free chart tool (works in the TradingView phone app)One chart idea a day, in plain English. Follow along: