S&P Upgrades Ratings Of Six Health-Care Cos – Wall Street Journal

DOW JONES NEWSWIRES

Standard & Poor’s Ratings Services changed its criteria for short-term ratings on corporate-debt issuers, leading it to upgrade six health-care companies.

S&P upgraded by a notch the short-term ratings of Allergan Inc. (AGN), Amgen Inc. (AMGN), Becton …