S&P Global Ratings (previously Standard & Poor's and informally known as S&P) is an American credit rating agency (CRA) and a division of S&P Global that publishes financial research and analysis on stocks, bonds, and commodities. S&P is considered the largest of the Big Three credit-rating agencies, which also include Moody's Investors Service and Fitch Ratings. Its head office is located on 55 Water Street in Lower Manhattan, New York City.