OSCR vs UNH: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of August 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.

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. OSCR 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 OSCR 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.

Oscar Health is a US health insurance company built around a digital-first member experience rather than the paperwork and call centers of legacy insurers. The vast majority of its money comes from premiums on individual and family health plans sold through the Affordable Care Act (ACA) public marketplaces, where by early 2026 it had grown to roughly 3.2 million members, up about 56% year over year, making it one of the larger players on the exchanges. Alongside the insurance business it runs +Oscar, a technology platform it licenses to other healthcare organizations, plus brokerage and enrollment tools; that platform revenue is small today but growing faster than premiums and carries higher margins. The company was founded in 2012 by Mario Schlosser, Kevin Nazemi, and Joshua Kushner, and is now led by chief executive Mark Bertolini, a former Aetna CEO.

Full OSCR 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.

• OSCR drivers: Membership growth and share gains; Turn to profitability.
• 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: The dominant risk is policy. 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 OSCR 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 OSCR and UNH guides.

OSCR. Figures are approximate and tied to the asOf date; verify live numbers before acting. OSCR roughly doubled in 2026 to near multi-year highs after its record first quarter, yet it still trades at a low price-to-sales ratio (around 0.5x) versus other insurers because the market prices in ACA-policy risk and the possibility that back-half losses offset early-year profit. The valuation is less a bet on a rich growth multiple and more a wager on whether the profitability turn is durable through a policy shock.

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, July 2026): OSCR shows revenue (ttm) ~$13 billion, revenue (q1 2026 quarterly) ~$4.65 billion, up ~53% year over year, net income (q1 2026) ~$679 million, or ~$2.07 per diluted share, a record, members ~3.2 million, up ~56% year over year; 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%.

OSCR 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 OSCR and UNH exposure against your real portfolio. It is not an investment adviser.