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Merck & Co Inc

Exchange: NYSESector: HealthcareIndustry: Drug Manufacturers - General

At Merck, known as MSD outside of the United States and Canada, we are unified around our purpose: We use the power of leading-edge science to save and improve lives around the world. For more than 130 years, we have brought hope to humanity through the development of important medicines and vaccines. We aspire to be the premier research-intensive biopharmaceutical company in the world – and today, we are at the forefront of research to deliver innovative health solutions that advance the prevention and treatment of diseases in people and animals. We foster a diverse and inclusive global workforce and operate responsibly every day to enable a safe, sustainable and healthy future for all people and communities.

Did you know?

A mega-cap stock valued at $284B.

Current Price

$114.62

+1.53%

GoodMoat Value

$189.57

65.4% undervalued
Profile
Valuation (TTM)
Market Cap$284.49B
P/E15.59
EV$321.89B
P/B5.41
Shares Out2.48B
P/Sales4.38
Revenue$65.01B
EV/EBITDA11.30

Merck & Co Inc (MRK) Stock Analysis

GoodMoat Analysis

Based on data as of March 26, 2026

Merck & Co is a leading pharmaceutical giant with a durable moat built on patents and a blockbuster drug, Keytruda. It trades at a significant discount to its estimated intrinsic value, but faces a major patent cliff that requires careful assessment of its pipeline.

Read full analysis
Merck & Co is a global pharmaceutical company that discovers, develops, and markets medicines and vaccines. Its primary competitive moat, as per Section 1 of the framework, is anchored in high regulatory barriers and technology leadership via its extensive patent portfolio, particularly for its oncology blockbuster Keytruda. This grants it a temporary but powerful monopoly on critical therapies. The company also demonstrates strong quality indicators, including a high ROE of 34.7% and a robust operating margin of 32.6%. Applying the Decision Framework (Section 6), Merck's strong financials and clear moat allow it to pass the initial Moat & Quality Gate. The valuation assessment is favourable: the current price of $119.37 is significantly below the GoodMoat Target of $189.57, implying a margin of safety well over 40%, which the framework classifies as 'Deeply Undervalued.' However, a major red flag is the looming patent expiration for Keytruda, which introduces significant execution and growth risk as the company must successfully commercialize its pipeline to offset the eventual revenue loss. For a value investor, this creates a classic scenario of a high-quality business at an attractive price, but one where the long-term durability of its moat is under direct scrutiny. Further investigation should focus on the strength and commercial potential of Merck's late-stage clinical pipeline.

MRK Price Chart

Market Cap$284.49B
Current Price$114.62
P/E Ratio15.59
Forward P/E
PEG Ratio-0.85
EPS$7.28
Book Value$21.19
P/B Ratio5.41

MRK Financial Charts

FCF vs CAPEX

FCFCAPEX

Forward estimates use 3.5% FCF growth (CAGR)

Cash vs Debt

Net Debt: 34.8B

Revenue

39.1B

FY19

41.5B

FY20

48.7B

FY21

59.3B

FY22

60.1B

FY23

64.2B

FY24

65.0B

FY25

Net Income

9.8B

FY19

7.1B

FY20

13.0B

FY21

14.5B

FY22

365M

FY23

17.1B

FY24

18.3B

FY25

MRK 52-Week Range

$70.89
$123.18
50-Day MA: $118.36200-Day MA: $97.87
Did you know?

Pays a 2.87% dividend yield.

Merck & Co Inc (MRK) Financial Summary

Merck & Co Inc (MRK) is a Healthcare company in the Drug Manufacturers - General industry, listed on NYSE. The stock currently trades at $114.62 with a market capitalization of $284.49B.

Key valuation metrics include a P/E ratio of 15.59, price-to-book ratio of 5.41, and EPS of $7.28. The company reports a profit margin of 28.1% and return on equity of 34.7%.

MRK Key Financial Metrics

MetricValue
Market Cap$284.49B
P/E Ratio15.59
EPS$7.28
P/B Ratio5.41
P/S Ratio4.38
EV/EBITDA11.30
Dividend Yield2.87%
Profit Margin28.1%
Return on Equity34.7%
Debt/Equity0.94

MRK Revenue & Earnings History

YearRevenueNet Income
FY19$39.12B$9.84B
FY20$41.52B$7.07B
FY21$48.70B$13.05B
FY22$59.28B$14.52B
FY23$60.12B$365.00M
FY24$64.17B$17.12B
FY25$65.01B$18.25B

Merck & Co Inc (MRK) Valuation

Based on GoodMoat's DCF model, Merck & Co Inc has a fair value estimate of $189.57. At the current price of $114.62, the stock appears 39.5% undervalued relative to our intrinsic value estimate.

MRK Quality Indicators

Merck & Co Inc maintains a profit margin of 28.1% and an operating margin of 32.6%. Return on equity stands at 34.7%. The current ratio is 1.54. Debt-to-equity ratio is 0.94.

About Merck & Co Inc

At Merck, known as MSD outside of the United States and Canada, we are unified around our purpose: We use the power of leading-edge science to save and improve lives around the world. For more than 130 years, we have brought hope to humanity through the development of important medicines and vaccines. We aspire to be the premier research-intensive biopharmaceutical company in the world – and today, we are at the forefront of research to deliver innovative health solutions that advance the prevention and treatment of diseases in people and animals. We foster a diverse and inclusive global workforce and operate responsibly every day to enable a safe, sustainable and healthy future for all people and communities.

MRK Free Cash Flow

Merck & Co Inc generated $12.36B in trailing twelve-month free cash flow, representing an FCF yield of 4.34%. This moderate FCF yield indicates reasonable cash generation.

MRK Shares Outstanding

Merck & Co Inc has 2.48 billion shares outstanding at a share price of $114.62, giving it a market capitalization of $284.49B.

MRK Recent Insider Trades

Recent insider transactions at Merck & Co Inc include:

MRK Insider Transactions
InsiderTypeSharesValue
Guindo Chirfi (Chief Marketing Officer)SELL10,000$1.21M
Li Dean Y (Executive VP & President, MRL)SELL10,235$1.20M
Guindo Chirfi (Chief Marketing Officer)SELL10,000$1.18M