UnitedHealth (UNH) stock posts largest Dow 30 sell-off since 1998

UnitedHealth Group (NYSE: UNH), a bellwether of the Dow 30, is experiencing one of the steepest sell-offs in modern stock market history. Over the past month, UNH shares have plunged more than 55%—a rare event for any blue-chip stock.In fact, this sharp downturn represents the first instance since 1998 of a Dow 30 component losing more than half its market value in just one month. Remarkably, the last occurrence involved the very same stock, UnitedHealth, highlighting a dramatic repeat in its market traject ...