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Shares of UnitedHealth Group, Inc. (UNH) slid back below the level at which Warren Buffett’s Berkshire Hathaway built its stake last year, raising investor concerns about slowing growth and Medicare pressure, even as an analyst points to AI as a potential long-term advantage.
UNH stock currently stands at about $262, below Berkshire’s estimated $320 average purchase price for its investment last year of over 5 million shares valued at roughly $1.6 billion.
Berkshire disclosed in August 2025 that it had purchased over 5 million shares of UnitedHealth worth roughly $1.6 billion, making the position one of its larger equity holdings at the time. The investment came as a surprise, given the insurer’s mounting regulatory scrutiny and pressure tied to rising healthcare costs.
Since then, UnitedHealth’s operating outlook has deteriorated further. The company is now forecasting its first annual revenue decline in over three decades, with 2026 revenue expected to come in at just over $439 billion, about 2% lower than 2025 levels. At the same time, the insurer is scaling back parts of its care delivery footprint, including reducing Optum Health sites and membership by about 20%.
UnitedHealthcare’s Medicare Advantage membership alone is projected to fall by 1.3 million to 1.4 million members. Adding to investor concerns, proposed federal policy updates imply only a 0.09% increase in Medicare Advantage payment rates for 2027, far below expectations.
Despite the recent weakness, Bernstein SocGen Group reiterated an ‘Outperform’ rating and a $405 price target, implying a 55% upside from current levels. The firm pointed to UnitedHealth’s expanding AI strategy as a potential source of long-term advantage, according to a report by Investing.
The firm said applying AI to managed care organizations can reduce operating cost ratios, adding that insurers investing more aggressively in such tools are likely to gain market share relative to smaller competitors. Bernstein noted that AI deployment in the sector is expected to focus on two areas: consumer agents to enable better consumer decision making and payer efficiencies.
Last week, UnitedHealth launched its generative AI companion, Avery, which Bernstein SocGen Group said, fits into the consumer-agent category and “has the potential to ease friction with the system and achieve managed care organization interests in steering to the most cost-effective solutions.”
UnitedHealth said Avery is currently available to about 6.5 million employer-sponsored members and 160,000 Medicare Advantage members, with plans to expand access to roughly 20.5 million commercial, Medicare and Medicaid members by year-end.
The tool helps members navigate coverage, compare care options, check claim status, schedule appointments and understand benefit details in real time, while reducing administrative workload for customer advocates.
On Stocktwits, retail sentiment for UNH jumped to ‘bullish’ from ‘neutral’ levels a week ago amid ‘extremely high’ message volume.

One user called UNH a “strong healthcare name, just steady watching.”
Another user said, “$UNH This may have found bottom. Chart looks good, if only it gets any positive news it could bounce nicely. A potential safe haven from everything else in the market. I’m holding May calls.”
UNH stock has shed nearly half of its value over the past year.
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