Upgrades, Downgrades: Callaway Golf

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.

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For those reasons, we believe a rating alone cannot tell the whole story and should therefore be only a part of an investor's overall research.

The following ratings changes were generated on June 18.

Health-care staffing company AMN Healthcare Services (AHS Quote) is upgraded to buy. Revenue growth has slightly outpaced the industry average, up 3.4% from the same quarter a year ago. The debt-to-equity ratio of 0.53 is low and below the industry average.

A positive pattern of earnings-per-share growth has emerged over the past two years, with EPS increasing by 22% in the past quarter compared to the same quarter a year ago. In addition, net income growth has significantly exceeded that of the S&P 500, rising 16% compared to the same quarter last year. Gross profit margin is lower than desirable, but has still increased from last year. AMN Healthcare Services had been rated hold since Dec. 18, 2007.