Morning Market Losers

Atlas Resource Partners LP (NYSE:

) dropped 12.42% to $18.83. Atlas Resource Partners' trailing-twelve-month ROE is -7.99%. Mediabistro (NASDAQ:

) plummeted 10.46% to $1.5401. Mediabistro shares have dropped 60.37% over the past 52 weeks, while the S&P 500 index has gained 18.02% in the same period. Mead Johnson Nutrition Company (NYSE:

) dropped 8.22% to $68.74 after Goldman Sachs downgraded the stock from “buy” to “neutral.” Ultrapetrol (Bahamas) (NASDAQ:

) dropped 8.05% to $2.40. Ultrapetrol's trailing-twelve-month profit margin is -17.05%.