S&P Global Ratings has revised Chicago-based Ann & Robert H. Lurie Children's Hospital's outlook to positive from stable.
"The outlook revision reflects our view of Lurie Children's continued strengthening financial profile and improving business position," said S&P analyst Suzie Desai.
S&P also affirmed the "A+" long-term rating and underlying rating on Lurie Children's Hospital's series 2008A and 2008B bonds.