GlaxoSmithKline PLC (GSK) fair value: what the stock is really worth
As of Nov 5, 2026: fair value (intrinsic value) of GlaxoSmithKline PLC stock $69.24, price $50.41, upside +37.4%, quality 66 out of 100. Rating: undervalued. Calculated from audited financials with 23 of our 26 valuation models and 37 quality factors, updated daily.
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GlaxoSmithKline PLC
GSK · USThe stock costs 27% less than our calculation considers fair.
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Price vs Fair Value
White line = price, green steps = our fair value per fiscal year. As of Nov 6, 2026.
How to read this chart
60‑month range $24.52 – $59.60 · fair‑value band $44.20 – $91.70 · the $50.41 price screens below the $69.24 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). As of Nov 6, 2026.
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Company profile
GSK plc, together with its subsidiaries, engages in the research, development, and manufacture of vaccines, specialty medicines, and general medicines to prevent and treat disease in the United Kingdom, the United States, and internationally.
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It operates through Commercial Operations and Total R&D segments.
The company offers specialty medicines that include oncology, respiratory/immunology, inflammation, and inhaled medicines for HIV, respiratory eosinophildriven diseases, lupus and lupus nephritis, ovarian cancer, and endometrial cancer.
It also provides vaccines for Shingles, Meningitis, RSV, Seasonal Influenza, Hepatitis, Diphtheria, Tetanus, Acellular Pertussis, Rotavirus, Pertussis, Polio, Haemophilus, Invasive Diseases, Pneumonia, Acute Otitis Media, Measles, Mumps, Rubella and Chickenpox, and Human Papilloma Virus.
Additionally, the company offers general medicines for asthma, COPD, bacterial infection, benign prostatic hyperplasia, allergic rhinitis, and inflammatory skin conditions.
It also focuses on the discovery, development, and commercialization of oral small molecule therapies for patients with unmet needs in oncology and inflammatory diseases. It has a collaboration agreement with CureVac to develop mRNA vaccines for infectious diseases.
The company has a strategic alliance with AN2 Therapeutics, Inc. for the development of new therapies for TB. GSK plc was formerly known as GlaxoSmithKline plc and changed its name to GSK plc in May 2022. The company was founded in 1715 and is headquartered in London, United Kingdom.
Stock analysis
GlaxoSmithKline PLC (GSK) currently trades at $50.41, while our model-based Fair Value estimate is $69.24, implying the stock looks roughly 27% undervalued today.
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Valuation
Bull case: the Multiples group reads highest at a median of $84.69 per share, and 19 of the 23 models we run sit above the $50.41 price.
Bear case: the Dividend Discount group reads lowest at $26.79, and 4 of the 23 models stay below the price. Data coverage for this calculation is medium.
Scenario range: $44.20 (bear) to $91.70 (bull), the price of $50.41 sits inside it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.
Quality & growth
The Quality Score stands at 66/100 (solid quality), in the Healthcare sector.
Healthy Growth: Revenue growth appears healthy and is supported by profitability and cash-flow quality.
GlaxoSmithKline PLC ADR reported revenue of £32.7B in FY2025 versus £24.7B in FY2021, a compound +7.2%/yr. Reported net income was £5.7B in FY2025, compounding +6.9%/yr from FY2021.
Key figures
Market cap $102B Large · P/E ratio 17.6 · P/S ratio 3.07 · EPS (TTM) $2.87 · Dividend yield 1.6% · Net margin 17.5% · Return on equity 28.3% · Return on assets (EBIT) 8.8%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 81 out of 100 (medium confidence).
What moves the price
The last reported earnings sit well below what analysts expect (earnings in transition, for example after write-downs or an earnings dip); whether the stock is cheap or expensive hinges on the expected recovery actually arriving. Read the fair value with that caveat.
The share trades about 15% below its 52-week high and 12% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Healthcare peers we cover trades at −11% fair-value upside, at 37%, GSK screens cheaper than that median.
Fair Value models
All 23 models by family
The fair value above starts from this blend and is adjusted for dilution from new shares.
Quality Score breakdown
It rates the business: profits, how they develop, real cash, balance sheet, investing and share count.
Revenue & earnings trend
Growth Forecast
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Compare GlaxoSmithKline PLC ADR with another stock
Price, fair value, quality and upside side by side.
Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Drug Manufacturers - General · 74 stocks
Valuation Multiplesvs Drug Manufacturers - General median · lower = cheaper
Strength profile in five axes (Snowflake)
Context: sector, industry, market
- Is the Health Care sector expensive or cheap?
- P/E, EV/EBITDA and margins by industry (reference tables)
- Fair value gap by industry
- Return on assets by industry
- Stock screener with 62 metrics
- Undervalued stocks: US Stocks
- Valuation of the USA market
Values & ESG
Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.
Similar stocks
10 more Drug Manufacturers - General stocks, each showing price versus our Fair Value estimate.
| Stock | Price | Fair Value | vs Fair Value | Compare |
|---|---|---|---|---|
| Bristol-Myers Squibb Company BMY | $63.13 | $75.91 | +20% | vs GSK |
| Gilead Sciences, Inc GILD | $167.57 | $191.93 | +15% | vs GSK |
| Amgen Inc AMGN | $460.28 | $507.39 | +10% | vs GSK |
| AbbVie Inc ABBV | $288.24 | $259.62 | −10% | vs GSK |
| Novartis AG NOVN | CHF 134.12 | CHF 119.58 | −11% | vs GSK |
| Merck & Co MRK | $146.94 | $129.26 | −12% | vs GSK |
| Pfizer Inc PFE | $29.88 | $24.87 | −17% | vs GSK |
| Roche Holding RO | CHF 399.00 | CHF 326.56 | −18% | vs GSK |
| Johnson & Johnson, JNJ | $272.32 | $168.85 | −38% | vs GSK |
| Eli Lilly and Company LLY | $1,365 | $749.92 | −45% | vs GSK |
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Key figures of GlaxoSmithKline PLC ADR
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