Investors frequently get to see the analyst upgrades and Buy ratings from Wall Street firms. They often do not get to see when analyst downgrade stocks to sell or to avoid. We review many fresh research calls each and every day to find great ideas from value stocks to growth stocks to dividend stocks and we have broken out the negative analyst calls today. These are this Wednesday’s top analyst downgrades and cautious research notes from Wall Street.

Biogen Idec Inc. (NASDAQ: BIIB) was replaced by Amgen on the Conviction Buy List at Goldman Sachs this morning. Biogen shares were downgraded to Neutral in the call.

Edison International (NYSE: EIX) was cut to Market Perform from Outperform at BMO Capital Markets.

Fiserv Inc. (NASDAQ: FISV) was cut to Perform from Outperform at Oppenheimer.

LSI Corp. (NASDAQ: LSI) was cut to Neutral from Buy at Goldman Sachs.

Magellan Health Services Inc. (NASDAQ: MGLN) was cut to Neutral from Buy at Citigroup.

Mindspeed Technologies Inc. (NASDAQ: MSPD) was cut to Market Perform from Outperform at Raymond James.

Nuance Communications Inc. (NASDAQ: NUAN) was cut to Equal Weight from Overweight after yesterday’s huge drop by Morgan Stanley. FBR Capital Markets also downgraded it yesterday to Market Perform.

Oil States International Inc. (NYSE: OIS) was downgraded to Underperform from Market Perform at BMO Capital Markets and was downgraded to Market Perform from Outperform at Raymond James.

ONEOK Corp. (NYSE: OKE) was cut to Equal Weight from Overweight at Morgan Stanley.

Select Comfort Corp. (NASDAQ: SCSS) was named Bear of the Day after two earnings warnings at Zacks Investment Research.

See also: Top Wall Street Analyst Upgrades and Positive Calls

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