What is Merck & Co.'s PEG ratio?

Merck & Co. (MRK) reported PEG ratio of 2.2× in Q4 2025.

What does PEG ratio mean?

The P/E ratio adjusted for how fast earnings are growing.

How do you interpret PEG ratio?

Around 1.0 is often cited as fairly valued for the growth on offer; below 1.0 can flag a growth bargain. Highly sensitive to the growth input and meaningless when growth is zero or negative.

How does PEG ratio compare across companies?

A rough cross-company growth-adjusted screen; treat as directional given its sensitivity to the (trailing) growth basis.

Merck & Co. MRK PEG ratio

PEG ratio at other companies

Bristol-Myers SquibbBMY

0.5×—

Johnson & JohnsonJNJ

0.2×—

Regeneron PharmaceuticalsREGN

8.6×+7.1×

United TherapeuticsUTHR

3.2×+2.4×

AmgenAMGN

0.8×+0.3×

AbbottABT

0.1×-2.8×

Other financials

Income statement

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Revenue$16.3B+4.9%

Gross profit$12.1B-0.2%

Net income-$4.2B-183%

EPS (diluted)-$1.72-186%

Balance sheet

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Cash & equivalents$5.4B-38.2%

Total debt$49.1B+35.8%

Total equity$45.9B-5.1%

Total assets$128.69B+11.8%

Cash flow

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Operating cash flow$3.9B+56.7%

CapEx$991.0M-25.4%

Free cash flow$2.9B+150%

Valuation

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Market cap$281.24B+31.2%

Enterprise value$324.94B+34.2%

P/E31.5×+19.2×

P/S4.3×+0.9×

Profitability

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Gross margin73.9%-2.5pp

Net margin13.6%-13.7pp

Returns & leverage

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Return on equity19%-20.3pp

Debt / equity1.1×+0.3×

Current ratio1.3×-0.1×

Where this comes from

Calculated from Merck & Co.’s reported figures.

market cap/net income=2.2×

Based on the most recent quarter.

The official record: Merck & Co.’s 10-Q, filed May 4, 2026, on SEC EDGAR. View the filing →

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Questions, answered.

What is Merck & Co.'s PEG ratio?: Merck & Co. (MRK) reported PEG ratio of 2.2× in Q4 2025.
What does PEG ratio mean?: The P/E ratio adjusted for how fast earnings are growing.
How do you interpret PEG ratio?: Around 1.0 is often cited as fairly valued for the growth on offer; below 1.0 can flag a growth bargain. Highly sensitive to the growth input and meaningless when growth is zero or negative.
How does PEG ratio compare across companies?: A rough cross-company growth-adjusted screen; treat as directional given its sensitivity to the (trailing) growth basis.