Dow Slides 500 Points As UnitedHealth Stock Heads To Worst Day In 17 Years

1. UnitedHealth shares fell over 18%, losing $107 to $478 each. 2. Company's earnings report missed estimates on revenue and EPS. 3. Falling market cap of $93 billion dropped UNH from 14th to 16th largest. 4. The Dow fell 520 points due to UNH’s significant impact. 5. Analysts and CEO expressed disappointment in UNH's recent performance.