Pfizer’s revenue reached $100 billion a few years ago, driven by its dominance in coronavirus treatments and prevention.
In recent times, it’s faced a drop in that demand and losses of exclusivity concerning certain blockbusters.
Pfizer (NYSE: PFE) has had its share of ups and downs in recent years. The pharma giant scored a major win in early pandemic days as it brought its coronavirus vaccine and later a coronavirus treatment to market. Those products helped it reach $100 billion in revenue back in 2022.
But as demand for those products decreased and other Pfizer blockbusters reached patent expiration, the company saw revenue and stock performance decline. Should you avoid Pfizer? Here's the key risk to watch.
Will AI create the world's first trillionaire? Our team just released a report on the one little-known company, called an "Indispensable Monopoly" providing the critical technology Nvidia and Intel both need. Continue »
Image source: Getty Images.
As mentioned, Pfizer's major blockbusters have been on the decline, and that brings it to a major turning point. The company must renew its portfolio with a number of strong products that will drive future growth. All of this depends on Pfizer's ability to successfully develop products in-house, as well as its ability to identify great outside technologies or products and acquire them.
So, Pfizer's biggest risk right now is that it has reached this moment of transition -- and a lot depends on its pipeline and the strength of recent acquisitions, including Seagen for its oncology products and research, and Metsera, which brought Pfizer an obesity drug pipeline.
Pfizer said during its latest earnings report that this year will be key as the company begins 20 significant pivotal trials.
An area of promise that could be transformational for Pfizer is the obesity drug market. Today, Eli Lilly and Novo Nordisk dominate, but through the acquisition of Metsera, Pfizer hopes to enter this industry of high demand and soaring revenues. Analysts expect the weight loss drug market to reach nearly $100 billion by the end of the decade, so there should be room for several players to generate blockbuster revenue here.
Pfizer's candidate, gained through the Metsera acquisition, has a particular advantage over current treatments. It could potentially be administered monthly. Today's injectable weight loss drugs are given weekly. The latest trial readout supports the idea of this less frequent administration, and Pfizer aims to advance 10 phase 3 trials for this candidate this year.
All of this sounds good, so you may wonder why it represents a risk. As for any pharma company, the big risk is the failure of candidates along the development pathway. And today, Pfizer depends on many pipeline programs to reshape its portfolio -- and eventually lead to growth. If key candidates, such as the obesity one, stumble, this could set Pfizer back and significantly weigh on stock performance.
Should you avoid Pfizer? No -- it's worth investing because the pharma player has many programs in the pipeline, and even if certain headwinds slow the company's turnaround, they are unlikely to stop it. If even a few candidates reach approval over the next few years, they should ignite a new era of growth for Pfizer.
Before you buy stock in Pfizer, consider this:
The Motley Fool Stock Advisor analyst team just identified what they believe are the 10 best stocks for investors to buy now… and Pfizer wasn’t one of them. The 10 stocks that made the cut could produce monster returns in the coming years.
Consider when Netflix made this list on December 17, 2004... if you invested $1,000 at the time of our recommendation, you’d have $514,000!* Or when Nvidia made this list on April 15, 2005... if you invested $1,000 at the time of our recommendation, you’d have $1,105,029!*
Now, it’s worth noting Stock Advisor’s total average return is 930% — a market-crushing outperformance compared to 187% for the S&P 500. Don't miss the latest top 10 list, available with Stock Advisor, and join an investing community built by individual investors for individual investors.
See the 10 stocks »
*Stock Advisor returns as of March 17, 2026.
Adria Cimino has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Pfizer. The Motley Fool recommends Novo Nordisk. The Motley Fool has a disclosure policy.