Dow Industrials Fall, Capping Another Tough Week on Wall Street - WSJ
1. UnitedHealth's shares dropped 22%, impacting the Dow index significantly. 2. Volatility persists amid trade tensions and Fed-reserve related issues. 3. Market saw declines after new U.S. restrictions on exports to China. 4. Presidential comments on the Fed chairman heighten investor unease. 5. Potential trade negotiations with EU may soothe market fears.