Healthcare is one of the largest sectors of the stock market and one of the most varied. Demand for medical care tends to hold up in recessions, which makes many healthcare companies defensive, while biotech start-ups can be among the riskiest stocks you can buy.
What's in the healthcare sector
- Pharmaceuticals: large drug makers with portfolios of approved medicines.
- Biotechnology: companies developing new treatments, ranging from profitable giants to early-stage firms with no revenue.
- Medical devices and equipment: surgical tools, implants, diagnostics and monitoring equipment.
- Health insurers and managed care.
- Providers and services: hospitals, labs, pharmacies and distributors.
- Life sciences tools: equipment and services for research labs.
Metrics that matter for healthcare
- Pipeline: for drug makers, the number and stage of drugs in clinical trials, since today's products eventually lose protection.
- Patent expirations: when a major drug's patent expires, cheaper generics can quickly take much of its revenue. Check which products drive sales and when their protection ends.
- Research spending as a share of revenue.
- Margins and free cash flow: established pharma and device makers often generate strong cash and pay dividends.
- Cash runway for unprofitable biotechs: how many quarters of spending their cash covers before they need to raise more.
- Medical loss ratio for insurers: the share of premiums paid out in claims.
Key risks
- Clinical trial results: a single failed trial can cut a small biotech's value dramatically.
- Regulatory approval: products need approval from regulators such as the FDA, which can be delayed or denied.
- Drug pricing and policy: changes to government programs and pricing rules can affect profits across the sector.
- Litigation: product liability lawsuits can be costly.
Ways to invest
- Healthcare sector ETFs such as XLV or VHT spread money across hundreds of companies. Biotech-only ETFs are far more volatile. See what is an ETF.
- Established companies: large pharma, device and insurance companies often appeal to investors seeking stability and dividends.
- Biotech: if you invest in individual early-stage companies, keep positions small and diversified, since outcomes are often binary.
Filter the Healthcare sector in the stock screener, check each candidate's balance sheet and cash flow on its stock page, and follow the stock analysis checklist.
This article is educational and not investment advice.
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