Editor's Note: TheStreet ratings do not represent the views of TheStreet's staff or its contributors. Ratings are established by computer based on metrics for performance (which includes growth, stock performance, efficiency and valuation) and risk ( volatility and solvency). Companies with poor cash flow or high debt levels tend to earn lower ratings in our model. NEW YORK ( TheStreet ) -- Riverbed Technology Incorporated (Nasdaq: RVBD ) has been downgraded by TheStreet Ratings from buy to hold. The company's strengths can be seen in multiple areas, such as its robust revenue growth, expanding profit margins and largely solid financial position with reasonable debt levels by most measures. However, as a counter to these strengths, we also find weaknesses including a generally disappointing performance in the stock itself, deteriorating net income and disappointing return on equity. Highlights from the ratings report include:.