U.S. stocks eke out gains but UnitedHealth's stock slump weighs on health-care sector

U.S. stock indexes on Tuesday managed slight gains, led by a sharp advance in the financials sector, but limited by declines among some of the nation's largest health-care providers. The Dow Jones Industrial Average advanced 68 points, or 0.3%, at 26,452.45 (on a preliminary basis), the S&P 500 index edged up less than 0.1% to 2,907, as the Health Care Select Sector SPDR ETF, as measured by the health-care focused exchange-traded fund, declined by 2.1%, while the financial sector ETF, the Financial Select Sector SPDR ETF, climbed 1.4%, to lead the broad-market. UnitedHealth Group Inc. was in particular focus after Sen. Bernie Sanders called out the compensation of the CEO of the company's health-care unit UnitedHealthcare in a tweet. Shares ended down 4.1%, delivering a headwind to the Dow of which it is a component.

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