09:15 AM EDT, 08/11/2026 (MT Newswires) -- Healthcare stocks were mixed premarket Tuesday, with the State Street Health Care Select Sector SPDR ETF ( XLV ) marginally declining and the iShares Biotechnology ETF (IBB) advancing by 0.3%.

IDEXX Laboratories ( IDXX ) shares were up more than 3% after the company launched the Catalyst proBNP Test, a dual-species in-clinic test for NT-proBNP designed to help veterinarians assess heart disease in cats and dogs.

Legend Biotech ( LEGN ) stock was up more than 4% after the company reported that it swung to Q2 earnings as revenue increased during the period.

Cardinal Health ( CAH ) shares were up 0.9% after the company posted higher fiscal Q4 non-GAAP earnings and revenue.