S&P Global Ratings affirmed its "BBB-" rating on Valencia, Calif.-based Henry Mayo Newhall Hospital's series 2017 and series 2014 revenue bonds, affecting $180 million of debt.
Additionally, S&P revised Henry Mayo's outlook to negative from stable.
"The outlook revision reflects our view of Henry Mayo's vulnerable financial profile, more specifically, its weakened operating performance in fiscal 2017," said S&P Global Ratings credit analyst Melanie Her. "We view any weaknesses in financial performance during a period where Henry Mayo is undertaking on a large multi-year construction project brings additional risk to the already challenged balance sheet and financial profile."
Henry Mayo is a 238-bed acute care hospital in California.