-- Health care stocks declined Tuesday afternoon, with the NYSE Health Care Index and the State Street Health Care Select Sector SPDR ETF (XLV) each shedding 0.9%.
The iShares Biotechnology ETF (IBB) fell 1%.
In corporate news, UnitedHealth Group (UNH) raised its full-year earnings outlook on Tuesday as the health insurance giant recorded an unexpected annual increase in its first-quarter results. Its shares jumped past 8%.