CI vs UNH: How The Cigna Group and UnitedHealth Group Compare (2026)

Same yardstick, side by side (as of July 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: CI is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. CI and UNH share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined CI and UNH exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

The Cigna Group is a large US health-services company built around two main engines. Its Evernorth health-services arm includes Express Scripts, one of the largest pharmacy benefit managers (PBMs) in the country, plus specialty pharmacy, care services, and pharmacy-related businesses; this is now the larger revenue and growth driver. Its Cigna Healthcare arm sells commercial health insurance, primarily to employers and individuals, along with international and supplemental coverage. Cigna makes money by collecting insurance premiums and managing medical costs, and by earning fees and spreads on managing drug benefits, negotiating with manufacturers, and dispensing specialty medications at scale. After exiting most of its Medicare businesses, Cigna is increasingly weighted toward commercial insurance and pharmacy services rather than government programs. It is headquartered in Bloomfield, Connecticut, and serves employers, health plans, government entities, and individuals.

Full CI guide

UnitedHealth Group is the largest US health insurer and one of the largest healthcare companies in the world. It runs through two main engines. UnitedHealthcare is the insurance arm, providing employer, individual, Medicare Advantage, and Medicaid health plans to tens of millions of members. Optum is the faster-growing health-services arm: Optum Health (physician groups and care delivery, including value-based care), Optum Insight (healthcare data, analytics, and technology), and Optum Rx (one of the largest pharmacy benefit managers in the country). The combination lets UnitedHealth manage both the financing and the delivery of care, capturing margin across the system and using vast claims data to manage costs. Headquartered in Minnetonka, Minnesota, UnitedHealth is a Dow component and one of the largest companies in the S&P 500 by revenue. Its scale, vertical integration, and Medicare Advantage leadership define its competitive position.

Full UNH guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• CI drivers: Evernorth and pharmacy services scale; Stable commercial insurance core.
• UNH drivers: Optum growth engine; Medicare Advantage scale.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Cigna faces significant regulatory and political risk: PBMs are under scrutiny from Congress, the FTC, and states over drug-pricing practices and rebate models, and potential reform could pressure the economics of Express Scripts. For UNH, unitedHealth faces a difficult medical-cost environment: rising utilization (especially in Medicare Advantage) can spike the medical loss ratio and compress margins, as the company has experienced.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick CI if you believe its drivers more; UNH if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the CI and UNH guides.

CI. Cigna trades at a low earnings multiple relative to the broad market, a discount that reflects PBM regulatory risk and the optically huge but low-margin pharmacy pass-through revenue. The bull case leans on steady adjusted EPS growth, heavy buybacks, and Evernorth's scale; the discounted valuation is the market pricing in policy and drug-pricing uncertainty.

UNH. UnitedHealth's revenue is enormous but its insurance margins are thin by design, so earnings hinge on the medical loss ratio and Optum's higher-margin growth. The valuation reflects scale and integration but has been pressured by cost inflation, regulatory uncertainty, and reputational headwinds. The market weighs Optum's durable growth against insurance-cycle and political risk.

Headline figures (approximate, early 2026): CI shows revenue (ttm) ~$250 billion (inflated by pharmacy pass-through revenue), operating margin thin on a revenue basis (PBM pass-through), measured better on adjusted EPS, adjusted eps double-digit growth targeted over time, dividend yield ~2%; UNH shows revenue (ttm) ~$400 billion, operating margin ~6-8%, net income (ttm) ~$15-22 billion (sensitive to medical costs), medical loss ratio ~85-89%.

CI and UNH are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined CI and UNH exposure against your real portfolio. It is not an investment adviser.