Market Shaken by UnitedHealth's Sharp Decline

In a dramatic premarket session, the Dow Jones Industrial Average took a nosedive, shedding over 600 points. This sudden downturn was largely fueled by a significant selloff in UnitedHealth Group, whose shares plummeted more than 20% following a disappointing quarterly earnings report and a downgraded full-year outlook.

Historical Drop for UnitedHealth

UnitedHealth's stock is facing its worst trading day since 1998, a development that has rattled investor confidence and exerted downward pressure on the broader market. At 7:40 am ET, the Dow was down 1.52%, or 607 points, highlighting the severity of the selloff.

Mixed Movements Across Major Indices

While the Dow suffered significant losses, the Nasdaq 100 and the S&P 500 showed resilience, gaining 0.73% and 0.50% respectively by 7:42 am ET. This divergence underscores the selective impact of UnitedHealth's woes on the market.