Standard & Poor's is an American financial services company. It is a division of The McGraw-Hill Companies that publishes financial research and analysis on stocks and bonds. S&P is known for its stock market indices such as the U.S.-based S&P 500, the Australian S&P/ASX 200, the Canadian S&P/TSX, the Italian S&P/MIB and India's S&P CNX Nifty. The company is one of the Big Three credit-rating agencies, which also include Moody's Investor Service and Fitch Ratings. Its head office is located on 55 Water Street in Lower Manhattan, New York City. read more