Stocks traded lower Wednesday morning after two very strong days in the market. China has cut bank reserve requirements, but some fears are creeping back up in Europe. Investors have bought pullbacks and sought value and overlooked stocks at each and every opportunity in the past two years. 24/7 Wall St. reviews dozens of analyst research reports each day to find new investment and trading ideas for our readers. Some of these analyst research reports cover stocks to buy, while others cover stocks to sell or avoid.

These are this Wednesday’s top analyst upgrades, downgrades and initiations.

Athenahealth Inc. (NASDAQ: ATHN) was raised to Outperform from Market Perform and the price target was raised to $172 from $134 (versus a $139.86 close) at Cowen.

BreitBurn Energy Partners L.P. (NASDAQ: BBEP) was downgraded to Underperform from Neutral at Credit Suisse.

Calix Inc. (NYSE: CALX) was downgraded to Neutral from Buy at Goldman Sachs. UBS also downgraded it to Neutral from Buy. The report is after earnings were in line with expectations.

Church & Dwight Co. (NYSE: CHD) was raised to Neutral from Underperform and the price objective was raised to $85 from $75 (versus a $82.69 close) at Bank of America Merrill Lynch.

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Coupons.com Inc. (NYSE: COUP) was raised to Neutral from Sell and the price target was raised to $15 from $12 (versus a $14.80 close) at Goldman Sachs.

Dean Foods Co. (NYSE: DF) was downgraded to Market Perform from Outperform at BMO Capital Markets.

Entropic Communications Inc. (NASDAQ: ENTR) has two opposite calls. It was raised to Neutral from Underperform at Credit Suisse, but it was downgraded to Hold from Buy at Needham.

Ericsson (NASDAQ: ERIC) was downgraded to Neutral from Overweight at J.P. Morgan.