Stock Upgrades, Downgrades From TheStreet.com Ratings

Each business day, TheStreet.com Ratings updates its ratings on the stocks it covers. The proprietary ratings model projects a stock's total return potential over a 12-month period, including both price appreciation and dividends. Buy, hold or sell ratings designate how the Ratings group expects these stocks to perform against a general benchmark of the equities market and interest rates.

While the ratings model is quantitative, it uses both subjective and objective elements. For instance, subjective elements include expected equities market returns, future interest rates, implied industry outlook and company earnings forecasts. Objective elements include volatility of past operating revenue, financial strength and company cash flows.

NYSE Euronext(NYX Quote), the holding company for NYSE Group and Euronext, operates a group of exchanges. It has been upgraded to hold from sell. The company's third-quarter revenue rose by 96.9% compared with the same period last year, and that appears to have helped boost earnings. Its EPS rose to 97 cents a share compared with 43 cents per share in the third quarter of 2006.

NYSE Euronext's debt-to-equity ratio of 0.30 is below the industry average, implying that there has been very successful management of debt levels. However, the company's quick ratio of 0.39 demonstrates a lack of ability to pay short-term obligations. Its stock price has gone down by 4.48% in the last 12 months, and looking ahead, TheStreet.com Ratings does not see anything in the company's numbers that would change the one-year trend. NYSE Euronext had been rated a sell since coverage was initiated in April 2007....