Health care stocks were ending mostly lower this afternoon, with the NYSE Health Care Index falling 0.9%, while the SPDR Health Care Select Sector ETF (XLV) was down 0.8%. The Nasdaq Biotechnology index also was sinking 1.1%. In company news, Zimmer Biomet Holdings (ZBH) was struggling to stay on positive ground late in Friday trading after saying the planned spinoff of its dental and spine business into a standalone public company remain on course for completion before the end of March following Zimmer filing the Form 10 registration statement for ZimVie, including historical financial information, business strategy and other company details, with US regulators.