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Merck & Co., Inc. (MRK) Stock Fundamental Analysis & AI Rating 2026

MRK NYSE Pharmaceutical Preparations NJ CIK: 0000310158
Updated This Month • Analysis: May 6, 2026 • SEC Data: 2026-03-31
Combined AI Rating
HOLD
78% Confidence
NEUTRAL
SELL
72% Conf
BUY
83% Conf

📊 MRK Key Takeaways

Revenue: $16.3B
Net Margin: -26.0%
Free Cash Flow: $2.9B
Current Ratio: 1.30x
Debt/Equity: 1.02x
EPS: $-1.72
AI Rating: SELL with 72% confidence
Merck & Co., Inc. (MRK) receives a HOLD rating with 78% confidence from our AI fundamental analysis based on SEC 10-K filings. With revenue of $16.3B, net profit margin of -26.0%, and return on equity (ROE) of -9.2%, Merck & Co., Inc. demonstrates mixed fundamentals in the Healthcare sector. Below is our complete MRK stock analysis for 2026.

Is Merck & Co., Inc. (MRK) a Good Investment?

Claude

Merck is operating at a critical profitability crisis with -$4.2B net income, -26.0% net margin, and inability to cover interest from operations (-11.7x coverage). While positive free cash flow ($2.9B) provides near-term survival cushion, the combination of severe losses, high leverage (1.02x debt-to-equity), and negative returns on equity/assets signals fundamental operational distress requiring urgent resolution.

ChatGPT

Merck shows high-quality profitability with a 32.4% operating margin, 28.1% net margin, 34.7% ROE, and strong interest coverage, indicating an efficient and financially resilient business. Free cash flow of $12.36B and solid liquidity support balance sheet flexibility, while modest 1.3% revenue growth suggests the core business remains stable but not currently in a high-growth phase.

Why Buy Merck & Co., Inc. Stock? MRK Key Strengths

Claude
  • + Positive free cash flow of $2.9B despite massive accounting losses suggests underlying business stability
  • + Large asset base of $128.7B indicates substantial portfolio of productive assets and valuable IP
  • + Improving EPS trajectory (+8.0% YoY) and modest revenue growth (+1.3% YoY) suggest potential stabilization
ChatGPT
  • + Excellent profitability, with very strong operating and net margins for a large pharmaceutical company
  • + Healthy financial position, including 1.54x current ratio, 1.30x quick ratio, and 69.5x interest coverage
  • + Robust cash generation, with $16.47B operating cash flow and $12.36B free cash flow

MRK Stock Risks: Merck & Co., Inc. Investment Risks

Claude
  • ! Operating income of -$3.5B and net margin of -26.0% indicate severe operational distress beyond temporary charges
  • ! Unable to cover interest expenses from operations with -11.7x interest coverage and high debt load of $46.7B relative to $5.3B cash
  • ! Debt-to-equity ratio of 1.02x combined with negative profitability creates unsustainable capital structure and refinancing risk
ChatGPT
  • ! Revenue growth is modest at 1.3% YoY, which may limit upside if the product portfolio does not reaccelerate
  • ! Leverage is meaningful, with $46.75B of long-term debt and debt-to-equity of 0.89x
  • ! Pharmaceutical fundamentals can be vulnerable to product concentration, patent expirations, and pipeline execution risk

Key Metrics to Watch

Claude
  • * Return to operating profitability and positive net margin trajectory
  • * Interest coverage ratio improvement and debt reduction relative to equity
  • * Sustainability of operating cash flow generation and underlying business cash conversion
ChatGPT
  • * Revenue growth and diluted EPS growth
  • * Free cash flow generation and debt levels

Merck & Co., Inc. (MRK) Financial Metrics & Key Ratios

Revenue
$16.3B
Net Income
$-4.2B
EPS (Diluted)
$-1.72
Free Cash Flow
$2.9B
Total Assets
$128.7B
Cash Position
$5.3B

💡 AI Analyst Insight

Merck & Co., Inc. presents a mixed fundamental picture. Review the detailed metrics above to form your own investment thesis.

MRK Profit Margin, ROE & Profitability Analysis

Gross Margin N/A
Operating Margin -21.7%
Net Margin -26.0%
ROE -9.2%
ROA -3.3%
FCF Margin 18.0%

MRK vs Healthcare Sector: How Merck & Co., Inc. Compares

How Merck & Co., Inc. compares to Healthcare sector averages

Net Margin
MRK -26.0%
vs
Sector Avg 12.0%
MRK Sector
ROE
MRK -9.2%
vs
Sector Avg 15.0%
MRK Sector
Current Ratio
MRK 1.3x
vs
Sector Avg 2.0x
MRK Sector
Debt/Equity
MRK 1.0x
vs
Sector Avg 0.6x
MRK Sector

Sector benchmarks are approximate industry averages. Actual sector performance may vary.

Is Merck & Co., Inc. Stock Overvalued? MRK Valuation Analysis 2026

Based on fundamental analysis, Merck & Co., Inc. shows some fundamental concerns relative to the Healthcare sector in 2026.

Return on Equity
-9.2%
Sector avg: 15%
Net Profit Margin
-26.0%
Sector avg: 12%
Revenue Growth
N/A
Year-over-year
Debt/Equity
1.02x
Sector avg: 0.6x

Note: This is a fundamental analysis based on SEC filings. For P/E ratio, price targets, and market-based valuation, consult financial data providers. This is not investment advice.

Merck & Co., Inc. Balance Sheet: MRK Debt, Cash & Liquidity

Current Ratio
1.30x
Quick Ratio
1.06x
Debt/Equity
1.02x
Debt/Assets
0.0%
Interest Coverage
-11.66x
Long-term Debt
$46.7B

MRK Revenue & Earnings Growth: 5-Year Financial Trend

MRK 5-year financial data: Year 2021: Revenue $48.7B, Net Income $9.8B, EPS $3.81. Year 2022: Revenue $59.3B, Net Income $7.1B, EPS $2.78. Year 2023: Revenue $60.1B, Net Income $13.0B, EPS $5.14. Year 2024: Revenue $64.2B, Net Income $14.5B, EPS $5.71. Year 2025: Revenue $65.0B, Net Income $365.0M, EPS $0.14.
Revenue
Net Income
EPS (right axis)

5-Year Trend Summary: Merck & Co., Inc.'s revenue has grown significantly by 33% over the 5-year period, indicating strong business expansion. The most recent EPS of $0.14 reflects profitable operations.

MRK Revenue Growth, EPS Growth & YoY Performance

Revenue Growth
N/A
Year-over-year
Net Income Growth
N/A
Year-over-year
EPS Growth
N/A
Earnings per share
FCF Margin
18.0%
Free cash flow / Revenue

MRK Quarterly Earnings & Performance

Quarterly financial performance data for Merck & Co., Inc. including revenue, net income, and earnings per share.
Quarter Revenue Net Income EPS
Q1 2026 $15.5B -$4.2B $-1.72
Q3 2025 $16.7B $3.2B $1.24
Q2 2025 $15.8B $4.4B $1.76
Q1 2025 $15.5B $4.8B $1.87
Q3 2024 $16.0B $1.6B $0.62
Q2 2024 $15.0B -$3.2B $-1.24
Q1 2024 $14.5B $2.8B $1.11
Q3 2023 $15.0B $1.6B $0.62

Data sourced from SEC EDGAR 10-Q quarterly filings. Figures may represent quarterly or cumulative values.

Merck & Co., Inc. Dividends, Buybacks & Capital Allocation

Operating Cash Flow
$3.9B
Cash generated from operations
Stock Buybacks
$874.0M
Shares repurchased (TTM)
Capital Expenditures
$991.0M
Investment in assets
Dividends Paid
$2.1B
Returned to shareholders

MRK SEC Filings: Latest 10-K & 10-Q Analysis

Access official SEC EDGAR filings for Merck & Co., Inc. (CIK: 0000310158)

📋 Recent SEC Filings

Date Form Document Action
May 7, 2026 4 xslF345X06/form4.xml View →
May 7, 2026 4 xslF345X06/form4.xml View →
May 7, 2026 4 xslF345X06/form4.xml View →
May 7, 2026 4 xslF345X06/form4.xml View →
May 7, 2026 4 xslF345X06/form4.xml View →

Frequently Asked Questions about MRK

What is the AI rating for MRK?

Merck & Co., Inc. (MRK) has a Combined AI Rating of HOLD from Claude (SELL) and ChatGPT (BUY) with 78% combined confidence, based on fundamental analysis of SEC EDGAR filings.

What are MRK's key strengths?

Claude: Positive free cash flow of $2.9B despite massive accounting losses suggests underlying business stability. Large asset base of $128.7B indicates substantial portfolio of productive assets and valuable IP. ChatGPT: Excellent profitability, with very strong operating and net margins for a large pharmaceutical company. Healthy financial position, including 1.54x current ratio, 1.30x quick ratio, and 69.5x interest coverage.

What are the risks of investing in MRK?

Claude: Operating income of -$3.5B and net margin of -26.0% indicate severe operational distress beyond temporary charges. Unable to cover interest expenses from operations with -11.7x interest coverage and high debt load of $46.7B relative to $5.3B cash. ChatGPT: Revenue growth is modest at 1.3% YoY, which may limit upside if the product portfolio does not reaccelerate. Leverage is meaningful, with $46.75B of long-term debt and debt-to-equity of 0.89x.

What is MRK's revenue and growth?

Merck & Co., Inc. reported revenue of $16.3B.

Does MRK pay dividends?

Merck & Co., Inc. pays dividends, with $2,105.0M distributed to shareholders in the trailing twelve months.

Where can I find MRK SEC filings?

Official SEC filings for Merck & Co., Inc. (CIK: 0000310158) including 10-K, 10-Q, and 8-K reports are available on SEC EDGAR.

What is MRK's EPS?

Merck & Co., Inc. has a diluted EPS of $-1.72.

How is the AI analysis conducted?

Two independent AI systems — Claude (Anthropic) and ChatGPT (OpenAI) — analyze SEC EDGAR filings including 10-K annual reports and 10-Q quarterly reports. Each AI evaluates financial health, profitability ratios, balance sheet strength, and growth metrics. The combined rating reflects both perspectives for balanced insights.

Is MRK a good stock to buy right now?

Based on our AI fundamental analysis in May 2026, Merck & Co., Inc. has a HOLD rating with 78% confidence. Review the strengths and risks sections above before making a decision. This is not investment advice.

Is MRK stock overvalued or undervalued?

Valuation metrics for MRK: ROE of -9.2% (sector avg: 15%), net margin of -26.0% (sector avg: 12%). Compare these metrics with sector averages to assess valuation.

Should I buy MRK stock in 2026?

Our dual AI analysis gives Merck & Co., Inc. a combined HOLD rating for 2026. Revenue is data pending, with profitability at or below sector average. Always conduct your own research.

What is MRK's free cash flow?

Merck & Co., Inc.'s operating cash flow is $3.9B, with capital expenditures of $991.0M. FCF margin is 18.0%.

How does MRK compare to other Healthcare stocks?

Vs Healthcare sector averages: Net margin -26.0% (avg: 12%), ROE -9.2% (avg: 15%), current ratio 1.30 (avg: 2).

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Disclaimer: This analysis is generated by Claude AI (Anthropic) and ChatGPT (OpenAI) based on publicly available SEC EDGAR filings. It does not include stock price data and should not be considered financial advice. All fundamental data is sourced from SEC public domain filings. Always conduct your own research and consult with a qualified financial advisor before making investment decisions.
Data Source: SEC EDGAR | Analysis Date: May 6, 2026 | Data as of: 2026-03-31 | Powered by Claude AI