Best vaccines stocks by NexusTrade rating

Ratings and dated fundamentals

Inspect the highest-rated company

How is this ranking built?

Every industry list applies the same steps at its own cutoff: industry membership, the latest AI report rating on or before the cutoff, a report age limit, dated market data, then a sort by rating with ties ordered by ticker. The animation steps through them with one real example, the live cybersecurity list refreshed on October 13, 2026.

A live list's cutoff is its refresh time. A past year's list uses December 31 of the year before, and the current year's list uses the time it was generated. A Top N page shows the first N rows of its year's list and exists only when that list has at least N companies.

What best means in this list

This list was refreshed on 2026-11-07 using existing company reports. The report date in each row is the date of the underlying analysis; refreshing the list does not create a new company report.

Best means the highest stored NexusTrade report ratings within this selection. Ratings use the product's 1-to-5 scale. The list sorts by rating from high to low, with ticker order breaking equal-rating ties. A rating summarizes a report; it does not predict a stock's return.

Companies belong to the Vaccines classification, based on company products and revenue. Classifications can overlap, so a company may appear in several industry lists.

What the leading companies do

The first 5 companies below lead the ratings in this snapshot; equal ratings are ordered by ticker. Their company profiles describe different businesses even when they share the Vaccines selection.

These are company descriptions, not estimates of revenue from this theme. Industry membership does not identify a pure-play business or establish how much sales depend on it. Open the company profile and examine segment disclosures before treating an overlapping classification as equivalent exposure.

1. ZOETIS INC. (ZTS): 4 / 5

   Zoetis Inc. engages in the discovery, development, manufacture, and commercialization of animal health medicines, vaccines, diagnostic products and services, biodevices, genetic tests, and precision animal health products in the United States and internationally. The company commercializes products primarily across species, including livestock, such as cattle, swine, poultry, fish, and sheep; and companion animals comprising dogs, cats, and horses. It also offers parasiticides, vaccines, dermatology, anti-infectives, pain and sedation, other pharmaceutical, and animal health diagnostics. In addition, the company provides animal health diagnostics, including point-of-care diagnostic products, instruments and reagents, rapid immunoassay tests, reference laboratory kits and services, and blood glucose monitors; and other non-pharmaceutical products, which include nutritionals, as well as products and services in biodevices, genetic tests, and precision animal health. It markets its products to veterinarians, livestock producers, and pet owners. The company has collaboration Blacksmith Medicines, Inc. to discover and develop novel antibiotics for animal health. Zoetis Inc. was founded in 1950 and is headquartered in Parsippany, New Jersey.

2. AstraZeneca PLC (AZN): 3.5 / 5

   AstraZeneca PLC, a biopharmaceutical company, focuses on the discovery, development, manufacture, and commercialization of prescription medicines. The company offers Imjudo, Datroway, Iressa, Tagrisso, Imfinzi, Lynparza, Calquence, Enhertu, Orpathys, Truqap, Zoladex, Faslodex, Farxiga, Brilinta, Crestor, Seloken, Lokelma, Roxadustat, Andexxa, Wainua, Symbicort, Fasenra, Pulmicort, Breztri/Trixeo, Saphnelo, Tezspire, Airsupra, Ultomiris, Soliris, Strensiq, Koselugo, Kanuma, Atacand, Plendil, Modip, Splendil, Munobal, Flodil, Komboglyze, Qtern, Byetta, XIGDUO, Accolate, Accoleit, Vanticon, Beyfortus, Synagis, FluMist, tixagevimab and cilgavimab, and sipavibart. It also provides Bricanyl Respules, Eklira Genuair/Tudorza/Bretaris, Bricanyl Turbuhaler, Rhinocort, Bevespi Aerosphere, Daliresp/Daxas, Oxis Turbuhaler, Breztri Aerosphere, Duaklir Genuair, Kavigale, Evusheld, Fluenz/FluMist, and Voydeya. The company offers its products for ocology, cardiovascular, renal and metabolism, respiratory & immunology, vaccines and immune, and therapies rare diseases. It serves primary and specialty care physicians through distributors and local representative offices in the United Kingdom, the United States, Europe, and Asia. It has a strategic agreement with Tempus to develop the largest multimodal foundation model in oncology. The company has a collaboration agreement with IonQ, Inc. for the development of quantum-accelerated computational chemistry workflow for healthcare, life sciences, and chemistry; and a strategic research collaboration with CSPC Pharmaceutical Group Limited to advance the discovery and development of novel oral candidates, with the potential to treat diseases across multiple indications. AstraZeneca PLC was formerly known as Zeneca Group PLC and changed its name to AstraZeneca PLC in April 1999. AstraZeneca PLC was incorporated in 1992 and is headquartered in Cambridge, the United Kingdom.

3. Johnson & Johnson (JNJ): 3.5 / 5

   Johnson & Johnson, together with its subsidiaries, engages in the research and development, manufacture, and sale of various products in the healthcare field worldwide. It operates in two segments, Innovative Medicine and MedTech. The Innovative Medicine segment offers products for various therapeutic areas, such as immunology, including rheumatoid arthritis, psoriatic arthritis, inflammatory bowel disease, and psoriasis; infectious diseases comprising HIV/AIDS; neuroscience, consisting of mood disorders, neurodegenerative disorders, and schizophrenia; oncology, such as prostate cancer, hematologic malignancies, lung cancer, and bladder cancer; cardiovascular and metabolism, including thrombosis, diabetes, and macular degeneration; and pulmonary hypertension comprising pulmonary arterial hypertension through retailers, wholesalers, distributors, hospitals, and healthcare professionals for prescription use. The MedTech segment provides electrophysiology products to treat heart rhythm disorders; the heart recovery portfolio, which includes technologies to treat severe coronary artery disease requiring high-risk PCI or AMI cardiogenic shock; circulatory restoration products for the treatment of calcified coronary artery and peripheral artery diseases; and neurovascular care that treats hemorrhagic and ischemic stroke. This segment offers an orthopaedics portfolio that includes products and enabling technologies that support hips, knees, trauma, spine, sports, and other; surgery portfolios comprising advanced and general surgery technologies, as well as solutions for breast aesthetics and reconstruction; contact lenses under the ACUVUE brand; and TECNIS intraocular lenses for cataract surgery. It distributes its products to wholesalers, hospitals, and retailers, as well as physicians, nurses, hospitals, eye care professionals, and clinics. The company was founded in 1886 and is based in New Brunswick, New Jersey.

4. Merck & Co., Inc. (MRK): 3.5 / 5

   Merck & Co., Inc. operates as a healthcare company worldwide. The company offers human health pharmaceutical for various areas under the Keytruda, Welireg, Gardasil, ProQuad, M-M-R II, Varivax, Vaxneuvance, RotaTeq, Pneumovax 23, Bridion, Dificid, Zerbaxa, Noxafil, Winrevair, Adempas, Verquvo, Lagevrio, Isentress/Isentress HD, Delstrigo, Pifeltro, Belsomra, Januvia, and Janumet brands. It also provides veterinary pharmaceuticals, vaccines and health management solutions and services, such as livestock products under the Nuflor, Bovilis/Vista, Bovilis Cryptium, Banamine, Estrumate, Matrix, Resflor, Zuprevo, Revalor, Safe-Guard, M+Pac, Porcilis, Circumvent, Nobilis/Innovax, Paracox and Coccivac, Exzolt, Slice, Imvixa, Clynav, Aquavac/Norvax, Aquaflor, Flexolt brands; Allflex Livestock Intelligence solutions; and companion animal products under the Bravecto One-Month, Bravecto Injectable/Quantum, Bravecto Plus, Sentinel Spectrum, Sentinel Flavor Tabs, Optimmune, Nobivac NXT, GilvetMab, Otomax, Mometamax, Mometamax Ultra, Posatex, Caninsulin/Vetsulin, Panacur, Regumate, Prestige, Scalibor/Exspot, Sure Petcare, and Home Again brands. The company has development and commercialization agreement for three of Daiichi Sankyo's deruxtecan ADC candidates; AstraZeneca PLC to co-development and co-commercialize AstraZeneca's Lynparza products for multiple cancer types, and Koselugo for multiple indications; licensed to develop, manufacture and commercialize LM-299, a novel investigational PD-1/VEGF bispecific antibody from LaNova; and collaboration agreement with Eisai Co., Ltd., Bayer AG, and Ridgeback Biotherapeutics LP, as well Moderna, Inc. It has a collaboration agreement with Antengene Corporation Limited to evaluate the combination of ATG-022, a CLDN18.2-targeting antibody-drug conjugate, and anti-PD-1 therapy, as well as KEYTRUDA (pembrolizumab) in patients with advanced solid tumors. Merck & Co., Inc. was founded in 1891 and is headquartered in Rahway, New Jersey.

5. Elanco Animal Health Incorporated Common Stock (ELAN): 3 / 5

   Elanco Animal Health Incorporated, an animal health company, innovates, develops, manufactures, and markets products for pets and farm animals worldwide. It offers pet health products, such as parasiticides, vaccines, and therapeutics that protect pets from fleas, ticks, and internal parasites under the Seresto, K-9 Advantage, Advantix, and Advocate trademarks; prescription parasiticide products, an over-the-counter treatments for the prevention and elimination of fleas and ticks under the Credelio, Credelio Cat, Credelio Plus, Interceptor Plus, Doncit, Drontal, Drontal Plus, and Trifexis trademarks; vaccines portfolio that provides differentiated prevention coverage for a number of important pet health risks; and therapeutics portfolio for the treatment of pain, otitis, cardiovascular, and dermatology indications, as well as osteoarthritis for dogs and cats under the Galliprant trademark. The company also provides farm animal products that help farmers improve animal health and wellbeing, and raise livestock, such as cattle, swine, and poultry. In addition, it offers medicated feed additives, injectable antibiotics, vaccines, insecticides and enzymes, and others under the Rumensin, Baytril, and Experior trademarks for cattle; and under the Maxiban and Monteban trademarks for the control and prevention of intestinal disease in poultry. Further, the company offers other pet health products for cats and dogs under the Atopica, Milbemax, Onsior, and TruCan trademarks; and other farm animal products for poultry, cattle, and swine under the AviPro, Catosal, Denagard, Hemicell, Pulmotil, and Surmax tradmarks. It sells its products to third-party distributors and independent retailers; and directly to farm animal producers and veterinarians. Elanco Animal Health Incorporated was founded in 1954 and is headquartered in Greenfield, Indiana.

Valuation and company size within this selection

These summaries use the 42 displayed companies. Each company retains its own market observation date in the ratings table above. Medians are unweighted; they are not a sector index valuation.

Positive P/E and price-to-book values are summarized separately. Missing, zero and negative values are excluded from those medians, with the included count shown. A lower multiple alone does not establish better value: profitability, growth, debt and business mix can differ.

Other business classifications in the list

A company can appear in several product and revenue classifications. These overlapping memberships help identify different business mixes to investigate; they are not verified revenue shares or mutually exclusive subindustries.

Dates and coverage

Report dates range from 2025-12-31 to 2026-10-14. Market observations range from 2026-11-06 to 2026-11-06. These dates may differ across companies. Daily closes are not synchronized live quotes.

The selection includes 2 companies without a report, 0 with invalid latest rating metadata, 1 with older reports, 1 with missing required fundamentals and 0 with out-of-date market observations. Missing companies receive no substitute score.

How the ranking is built

The ranking uses the latest stored report at or before the refresh cutoff for each active eligible company. The report date, fiscal year/period and producing model remain visible. The latest invalid score is excluded; an older favorable score does not replace it. Publication policy stock-ratings-v1 accepts report ages up to 550 days and market observations up to 10 calendar days, with a positive close and market capitalization. Optional missing ratios remain not reported.

Report ages can differ substantially, particularly between annual and quarterly reports. Different producing models may also use different judgments. Read the date, fiscal period and model before comparing scores. Private report analysis and account data are not published here.

A refresh reads existing reports and market data. It does not rerun a model or create a new analysis. Compare business fundamentals and your own research constraints alongside the score before making a decision.