Standard and Poor

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Standard & Poor's (S&P) is a United States-based financial services company. It is a division of The McGraw-Hill Companies that publishes financial research and analysis on stocks and bonds. It is well known for its stock-market indices, the US-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.

Source: Wikipedia