S&P Global Ratings has assigned an "AA" rating to Rochester, Minn.-based Mayo Clinic's $290 million of series 2016B bonds.
"The long-term rating on the Mayo Clinic reflects an excellent enterprise profile as one of the country's leading health systems," said S&P analyst Martin Arrick.
The outlook is stable. "The stable outlook reflects our view that the Mayo Clinic's sound financial profile is sustainable over the two-year outlook period," Mr. Arrick added.