Berkshire's UNH Sell-Off: A Timing Fumble?

Berkshire Hathaway, known for its investment prowess, recently exited its position in UnitedHealth Group (UNH), a move that may prove to be ill-timed. The conglomerate, now transitioning leadership, sold its shares after the stock's significant decline. UnitedHealth Group faced substantial challenges in 2024 and 2025, marked by unexpected surges in medical costs. This led to a concerning rise in its medical loss ratio to 88.9% in 2025, contributing to a sharp drop in operating earnings from $32 billion to $19 billion.

However, the health insurance sector is showing signs of recovery in 2026. UnitedHealth Group has strategically adjusted its insurance pricing and divested from less profitable areas. This has aided in normalizing its medical care ratio, which improved to 86.7% in the second quarter of 2026, with guidance for the full year at 88%. This improving profitability, coupled with an unexpected adjustment in Medicare Advantage funding, has propelled UNH stock back above $400.