Eli Lilly's GLP-1 Drugs Show Rapid Growth Amid Concerns
Written by Emily J. Thompson, Senior Investment Analyst
Updated: 1 hour ago
0mins
Should l Buy LLY?
Source: Fool
- Significant Sales Growth: Eli Lilly's GLP-1 drugs, Mounjaro and Zepbound, saw sales increase by 99% and 175% in 2025, respectively, contributing to 56% of the company's total revenue, indicating strong market demand but also highlighting the risks of product dependency.
- Competitive Pressure: As Mounjaro and Zepbound face future generic competition, their revenues and profits are expected to decline significantly, posing a threat to Eli Lilly's long-term growth, especially with competitors actively seeking alternative drugs.
- Valuation Risks: With a price-to-earnings ratio of 45 and a meager dividend yield of 0.6%, Eli Lilly's stock appears overvalued, suggesting that if the performance of its GLP-1 drugs falls short of expectations, the stock price could face substantial downside risk.
- Pfizer's Investment Opportunity: Despite setbacks in GLP-1 drug development, Pfizer offers a 6.3% dividend yield and a more reasonable P/E ratio of around 20, while demonstrating potential for long-term growth through acquisitions and partnerships, making it a more attractive option for investors.
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Analyst Views on LLY
Wall Street analysts forecast LLY stock price to rise
20 Analyst Rating
18 Buy
2 Hold
0 Sell
Strong Buy
Current: 1022.020
Low
950.00
Averages
1192
High
1500
Current: 1022.020
Low
950.00
Averages
1192
High
1500
About LLY
Eli Lilly and Company is a medicine company, which discovers, develops, manufactures, markets, and sells pharmaceutical products worldwide. Its cardiometabolic health products include Basaglar; Humalog, Humalog Mix 75/25, Humalog U-100, Humalog U-200, Humalog Mix 50/50, insulin lispro, and others; Humulin, Humulin 70/30, and others; Jardiance; Mounjaro; Trulicity; Zepbound; VERVE-102; VERVE-201, and VERVE-301. Its oncology products include Cyramza, Erbitux, Tyvyt, and Verzenio. Its immunology products include Ebglyss, Olumiant, Omvoh, and Taltz. Its neuroscience products include Emgality and Kisunla. The Company is also engaged in radiopharmaceutical discovery, development, and manufacturing efforts, and clinical and pre-clinical radioligand therapies in development for the treatment of cancer. It is also developing an oral small molecule inhibitor of a4b7 integrin for inflammatory bowel disease (IBD). It is evaluating its novel gene therapy candidate, ixoberogene soroparvovec.
About the author

Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
- Significant Sales Growth: Eli Lilly's GLP-1 drugs, Mounjaro and Zepbound, saw sales increase by 99% and 175% in 2025, respectively, contributing to 56% of the company's total revenue, indicating strong market demand but also highlighting the risks of product dependency.
- Competitive Pressure: As Mounjaro and Zepbound face future generic competition, their revenues and profits are expected to decline significantly, posing a threat to Eli Lilly's long-term growth, especially with competitors actively seeking alternative drugs.
- Valuation Risks: With a price-to-earnings ratio of 45 and a meager dividend yield of 0.6%, Eli Lilly's stock appears overvalued, suggesting that if the performance of its GLP-1 drugs falls short of expectations, the stock price could face substantial downside risk.
- Pfizer's Investment Opportunity: Despite setbacks in GLP-1 drug development, Pfizer offers a 6.3% dividend yield and a more reasonable P/E ratio of around 20, while demonstrating potential for long-term growth through acquisitions and partnerships, making it a more attractive option for investors.
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- Profit Downgrade: The company projected a worse-than-expected profit decline for 2026 due to pricing pressures from a deal with the U.S. government and patent expirations, leading to a 15% drop in early February.
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- Clinical Trial Results: The Phase 3 BRAVE-AA-PEDS study demonstrated that 42% of patients with severe alopecia areata achieved over 80% scalp hair coverage at 36 weeks, indicating Olumiant's efficacy in adolescents and potentially providing a new treatment option for this vulnerable population.
- Regulatory Progress: The European Medicines Agency (EMA) has issued a positive opinion for Olumiant's use in treating severe alopecia areata in adolescents aged 12 to under 18, with a final decision expected in the next one to two months, further facilitating market access for the drug.
- Significant Treatment Effects: The study revealed that 36.5% of patients achieved near-complete scalp hair regrowth within 36 weeks, with 50% experiencing successful eyebrow regrowth and 42.9% achieving eyelash regrowth, highlighting its potential to improve patients' quality of life.
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