UnitedHealth Group: Cyclical Fears Mask a Structurally Widening Moat

Dave Sather of Sather Financial Group presented his in-depth investment thesis on UnitedHealth Group (US: UNH) at Wide-Moat Investing Summit 2026.

Thesis summary:

UnitedHealth Group is the largest health insurer in the United States and one of the “most hated” companies in the country. It comprises two parts: UnitedHealthcare, which underwrites risk and insures roughly 50.9 million members, ahead of Elevance at 45.2 million; and Optum, which owns clinics, physicians, data, and pharmacy infrastructure. Optum Health employs or contracts about 90,000 physicians, roughly 10% of the US workforce; Optum Insight holds the largest de-identified clinical and claims database, covering about 330 million people, 9 of 10 hospitals, and 4 of 5 health plans; and Optum Rx is the third-largest PBM at about 23% share. Dave frames the combination as a flywheel: Optum’s data sharpens UnitedHealthcare’s underwriting, and the same tools are sold to other participants.

The moat rests on scale and predictive data, evidenced by a best-in-class MLR averaging 82.8% over the past decade. Dave notes the moat was tested when Haven, the 2018 Amazon, Berkshire, and JPMorgan JV, tried to displace managed care and disbanded by 2021. Todd Combs, its driving force, later bought UNH stock for Berkshire. Dave views Morningstar’s narrow-moat rating as misplaced.

The shares recently traded near where they sat five years ago, weighed down by the Change Healthcare cyberattack, the murder of UnitedHealthcare’s CEO, a DOJ billing probe, Medicare Advantage rate fears, and PBM reform. Dave argues these are largely cyclical or overstated. A late-2025 Humana ruling barring sample extrapolation undercuts the $26 billion liability figure, and the 2027 MA final rate came in better than feared. The core issue, elevated post-COVID utilization, is short-tail and reprices every 12 months.

Returning CEO Stephen Hemsley, the architect of modern UNH, is repricing the book, exiting international and unprofitable accounts, shrinking enrollment, and pushing an AI-first agenda funded by $1.5 billion in 2026 at an expected 2:1 return. His pay is almost entirely stock options with three-year cliff vesting, and he has replaced 50 of the top 100 leaders.

Dave’s earnings-based two-stage DCF, using a 16x exit P/E, an 11.5% discount rate, an MLR improving to 85% by 2028, and roughly 12% EPS CAGR, supports about $460 against a recent quote near $409. EPS recently ran about $16.29 while FCF exceeded $21 per share. Management’s 13% to 16% EPS targets imply a $482 to $600 range. Dave sees about 10% downside against about 50% upside.

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About the instructor:

Dave Sather is a CFP and the CEO of Sather Financial Group, a $1.8 billion firm managing individual accounts headquartered in Texas. Dave has degrees in business from Texas Lutheran University and Texas A&M University. Dave serves on the Board of Regents at Texas Lutheran University, chairing the Investment Committee. He developed and teaches the Bulldog Investment Company internship at Texas Lutheran University (www.BulldogInvestmentCo.com). This student managed investment fund has compounded at 15.4% per year over the last 15 years outperforming the S&P 500 by 264 percentage points. Recently, the program was recognized as the top student led business program by the Accreditation Council for Business Schools and Programs, which oversees more than 1,200 programs internationally. Dave also created and runs the Big Dog Endowment program (www.BigDogEndowment.com) , also at TLU, which teaches analytical and business skills for non-profit and philanthropic endeavors.

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