The following ratings changes were generated on Monday, Feb. 2. We've downgraded Acxiom ( ACXM), which provides customer and information management solutions for various companies worldwide, from hold to sell, driven by its deteriorating net income, disappointing return on equity, weak operating cash flow, generally weak debt management and decline in the stock price during the past year. Net income decreased significantly, by 120.8%, compared with the same quarter last year, underperforming both the S&P 500 and the IT services industry. Return on equity also greatly decreased, a signal of major weakness within the corporation. Net operating cash flow decreased to $78.9 million, or 39.3%. Acxiom's debt-to-equity ratio is weak, but its 1.2 quick ratio is somewhat strong, demonstrating its ability to handle short-term liquidity needs. Shares are down 8.1% over the past year, in part reflecting the market's overall decline. The fact that the stock is now selling for less than others in its industry in relation to its current earnings is not reason enough to justify a buy rating at this time. We've downgraded AMB Property ( AMB), which engages in the acquisition, development, and operation of industrial properties, from hold to sell, driven by its feeble growth in its earnings per share, deteriorating net income, disappointing return on equity and generally disappointing historical performance in the stock itself. AMB property experienced a steep decline in earnings per share of 727.3% in the most recent quarter compared with the year-ago quarter. Earnings per share have declined over the last two years, and we anticipate that this should continue in the coming year. Net income fell 303.7% compared with the year-ago quarter, and ROE also greatly decreased, underperforming the industry average and the S&P 500. AMB's debt-to-equity ratio of 1.6 is below the industry average, suggesting that this level of debt is acceptable within the REIT industry.