-- Health care stocks were higher late Wednesday afternoon, with the NYSE Health Care Index increasing 0.3% and the State Street Health Care Select Sector SPDR ETF (XLV) adding 0.2%.
The iShares Biotechnology ETF (IBB) climbed 2.1%.
In corporate news, DaVita (DVA) shares jumped past 21% after Deutsche Bank upgraded the stock to buy from hold and boosted its price target to $220 from $126, a day after the company reported better-than-expected Q1 results.