Jim Cramer: SELL Polycom and ‘BUY, BUY, BUY’ News Corp. and These 3 Movers Today

Jim Cramer made the following calls on September 14th, 2012. What do you think about his picks?

National Semiconductor Corporation (NYSE:NSM): Jim Cramer ranked this stock a Buy. The stock closed at $28.23, its 52-week high is $30.07, and its 52-week low is $13.00.

News Corp. (NASDAQ:NWSA): Jim Cramer ranked this stock a Buy. The stock closed at $24.67, its 52-week high is $24.80, and its 52-week low is $14.72.

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priceline.com Incorporated (NASDAQ:PCLN): Jim Cramer ranked this stock a Buy. The stock closed at $637.48, its 52-week high is $774.96, and its 52-week low is $411.26.

Polycom, Inc. (NASDAQ:PLCM): Jim Cramer ranked this stock a Sell. The stock closed at $12.01, its 52-week high is $22.74, and its 52-week low is $7.45.

Rentech Nitrogen Partners LP (NYSE:RNF): Jim Cramer ranked this stock a Buy. The stock closed at $37.00, its 52-week high is $37.44, and its 52-week low is $16.04.

Are these stocks a buy or sell? Let us help you decide. Check out our Wall St. Cheat Sheet Stock Picker Newsletter now >>