Pfizer Inc PEG Ratio
Data as of September 29, 2026
PEG Ratio
-5.20
PE Ratio (TTM)
37.73
EPS (TTM)
$0.76
Sector
Pharmaceuticals
How It's Calculated
-5.20 = 37.73 ÷ Growth Rate
What This Means
Pfizer Inc has a negative PEG ratio of -5.20, which typically means the company has negative earnings or a negative growth rate. PEG is not meaningful in this scenario.
About Pfizer Inc
Pfizer Inc (PFE) operates in the Pharmaceuticals sector, specifically in Pharmaceuticals. With a market capitalization of about $163.46B, it ranks as a large-cap stock — a major established company.
Shares recently traded near $28.72, within a 52-week range of $23.58 to $29.21 (-1.7% from the high, +21.8% from the low). Beta of 0.28 indicates relatively lower volatility versus the market.
Trailing profit margin is about 6.8%, signaling modest profitability that investors should weigh against growth plans.
Understanding This Metric
The PEG ratio adjusts the PE multiple for expected earnings growth, helping compare fast-growing and slow-growing names on a more equal footing. For Pfizer Inc, a PEG near 1 is often described as fairly valued relative to growth, though the growth estimate itself can change quickly with guidance revisions.
Sector Comparison
Among Pharmaceuticals names on our S&P 100 coverage, Pfizer Inc's PEG ratio of -5.20 can be compared with peers such as LLY (1.34), JNJ (2.42), MRK (2.90). Sector context helps interpretation, but each company's growth profile and balance sheet differ — use multiple metrics before drawing conclusions. View all Pharmaceuticals stocks.
Key Takeaways
- PFE is grouped in the Pharmaceuticals sector for peer comparisons.
- Recent beta of 0.28 suggests lower-than-market price sensitivity.
- Trailing profit margin of 6.8% provides context for how much earnings support the headline multiple.
Related Tools & Guides
Explore calculators and guides connected to this metric, or view all metrics for PFE.
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Frequently Asked Questions
What is PFE's PEG ratio?
PEG adjusts PE for expected earnings growth: PEG ≈ PE ÷ earnings growth rate. Pfizer Inc's PEG of -5.20 is a shorthand for growth-at-a-reasonable-price comparisons.
Does PEG suggest growth at a reasonable price?
PEG below 1.0 (-5.20) is often described as inexpensive relative to growth expectations — verify the growth input is realistic.
What are limitations of PEG for PFE?
PEG depends on a single growth estimate, ignores balance sheet risk, and can mislead when earnings are volatile. Use it with PE, margins, and Pharmaceuticals peers — not as a standalone verdict.
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