Stock Analysis

The Bull Case For Merck (MRK) Could Change Following Keytruda and WINREVAIR Milestones—Learn Why

  • In recent days, Merck announced several major clinical and regulatory milestones, including positive Phase 3 results for KEYTRUDA-based therapies in ovarian, bladder, and renal cancers, along with expanded FDA approval for WINREVAIR in pulmonary arterial hypertension.
  • These achievements highlight strong clinical execution in Merck's late-stage pipeline, reflecting the company's capacity to deliver advances in multiple high-need therapeutic areas even as its top-selling drug Keytruda faces upcoming patent challenges.
  • We'll examine how Merck's rapid succession of Phase 3 successes and FDA approvals supports its long-term earnings power and pipeline resilience.

The end of cancer? These 27 emerging AI stocks are developing tech that will allow early identification of life changing diseases like cancer and Alzheimer's.

Advertisement

Merck Investment Narrative Recap

To be a Merck shareholder today, you need to believe in the company’s ability to fill the revenue gap left by eventual Keytruda patent expiration, relying on a robust late-stage pipeline and new product launches. The latest string of positive late-stage oncology results and regulatory wins creates momentum, but given the scale of the forthcoming Keytruda loss of exclusivity, these developments do not materially move the needle on Merck’s closest, largest risk or its most important near-term catalyst.

The recent expanded FDA approval for WINREVAIR in pulmonary arterial hypertension stands out, as it provides a fresh contributor to growth outside oncology and supports management’s plan to diversify beyond Keytruda. While this marks incremental progress toward pipeline resilience, the overall impact is modest in comparison to the size of the Keytruda revenue cliff should the pipeline fall short of expectations.

Yet, investors should not overlook that, in contrast, the timing and magnitude of generic competition for Keytruda is a risk savvy investors should keep top of mind...

Read the full narrative on Merck (it's free!)

Merck's narrative projects $72.0 billion revenue and $24.3 billion earnings by 2028. This requires 4.2% yearly revenue growth and a $7.9 billion increase in earnings from $16.4 billion.

Uncover how Merck's forecasts yield a $102.33 fair value, a 16% upside to its current price.

Exploring Other Perspectives

MRK Community Fair Values as at Oct 2025
MRK Community Fair Values as at Oct 2025

Private fair value estimates from 32 members of the Simply Wall St Community for Merck range from US$74.77 to US$207.62 per share. Some are focused on the coming loss of exclusivity for Keytruda and how Merck’s expanding pipeline could shape future returns, see how your outlook compares.

Explore 32 other fair value estimates on Merck - why the stock might be worth over 2x more than the current price!

Build Your Own Merck Narrative

Disagree with existing narratives? Create your own in under 3 minutes - extraordinary investment returns rarely come from following the herd.

Searching For A Fresh Perspective?

Every day counts. These free picks are already gaining attention. See them before the crowd does:

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

New: Manage All Your Stock Portfolios in One Place

We've created the ultimate portfolio companion for stock investors, and it's free.

• Connect an unlimited number of Portfolios and see your total in one currency
• Be alerted to new Warning Signs or Risks via email or mobile
• Track the Fair Value of your stocks

Try a Demo Portfolio for Free

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com