Healthcare stocks rose Tuesday afternoon, with the NYSE Healthcare Index and the State Street Healthcare Select Sector SPDR ETF (XLV) each adding 1.1%.
The iShares Biotechnology ETF (IBB) increased 0.6%.
In corporate news, Boston Scientific (BSX) shares gained nearly 1% after it said Tuesday that a trial evaluating its investigational catheter for treating severe coronary artery disease met primary safety and effectiveness endpoints.