5 Hot Stocks Dragging Markets Down This Morning: MOS, CF, YNDX, MU, RENN

Through the opening portion of the trading day on Friday, September 30, 2011, the Dow (NYSE:DIA) is down 104.5 points to 11,048, the NASDAQ (NASDAQ:QQQ) is down 33.9 points to 2,447 and the S&P500 (NYSE:SPY) is down 15.9 points to 1,144. Here are some of today’s biggest losers by price.

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Shares of Mosaic Company The (NYSE:MOS) are trading at $50.14, down $4.36 (-7.5%) from the previous close of $54.20. The Mosaic Company is a producer and marketer of concentrated phosphate and potash crop nutrients for the global agriculture industry.

Stock Price Performance: From August 31, 2011, to September 29, 2011, the stock price had dropped $16.93 (-23.8%) from $71.13 to $54.20. The stock price saw one of its best stretches over the last year between May 20, 2011 and May 31, 2011 when shares rose for seven straight trading days, rising 8.3% (+$5.43). It saw one of its worst periods between September 15, 2011 and September 23, 2011 when shares fell for seven straight trading days, falling 18.8% (-$13.37).

Shares of CF Industries Holdings Inc. (NYSE:CF) are trading at $131.31, down $10.18 (-6.8%) from the previous close of $140.94. CF Industries Holdings is a manufacturer and distributor of nitrogen and phosphate fertilizer products, including ammonia, urea, urea ammonium nitrate solution, diammonium phosphate, and monoammonium phosphate.

Stock Price Performance: From August 31, 2011, to September 29, 2011, the stock price had dropped $41.81 (-22.9%) from $182.75 to $140.94. The stock price saw one of its best stretches over the last year between March 28, 2011 and April 5, 2011 when shares rose for seven straight trading days, rising 12.3% (+$15.70). It saw one of its worst periods between September 14, 2011 and September 23, 2011 when shares fell for eight straight trading days, falling 18.9% (-$34.03).

YANDEX NV CLASS A ORDINARY SHARES (NASDAQ:YNDX) is one of the price losers, as its shares are trading at $20.68, down $1.64 (-8.5%) from the previous close of $22.60.

Stock Price Performance: From August 3, 2011, to September 29, 2011, the stock price had fallen $11.64 (-34%) from $34.24 to $22.60. The stock price saw one of its best stretches over the last year between June 22, 2011 and July 1, 2011 when shares rose for eight straight trading days, rising 16.2% (+$4.98). It saw one of its worst periods between May 24, 2011 and June 1, 2011 when shares fell for six straight trading days, falling 17% (-$6.59).

Micron Technology Inc. (NASDAQ:MU) is among the price losers in the market, as its shares are trading at $5.25, which is 64 cents (-10.6%) below the previous close of $5.87. Micron Technology is a global manufacturer and marketer of Flash memory, image sensors and other semiconductor components.

Stock Price Performance: From July 6, 2011, to September 29, 2011, the stock price had fallen $1.69 (-22.4%) from $7.56 to $5.87. The stock price saw one of its best stretches over the last year between September 2, 2011 and September 14, 2011 when shares rose for eight straight trading days, rising 30.9% (+$1.70). It saw one of its worst periods between May 31, 2011 and June 13, 2011 when shares fell for 10 straight trading days, falling 18.7% (-$1.91).

RENREN INC AMERICAN DEPOSITARY SHARES EACH REPRESENTING THREE CLASS A ORDINARY SHARES (NYSE:RENN) is among the market losers in price, as its stock price fell by 49 cents (-8.4%) to $5.36.

Stock Price Performance: From July 6, 2011, to September 29, 2011, the stock price had fallen $4.85 (-45.3%) from $10.70 to $5.85. The stock price saw one of its best stretches over the last year between June 24, 2011 and July 7, 2011 when shares rose for nine straight trading days, rising 81.9% (+$5.10). It saw one of its worst periods between July 29, 2011 and August 8, 2011 when shares fell for seven straight trading days, falling 37.7% (-$4.08).