Analyst downgrades:

• UBS downgraded Mosaic (NYSE: MOS) to Neutral from Buy, citing valuation and more modest expectations for a potash demand recover.
• Potash (NYSE: POT) was lowered to Neutral from Buy by UBS, due to valuation and more modest expectations for a potash demand recovery.
• Atmos Energy (NYSE: ATO) was dropped to Hold from Buy by Argus, based on valuation.
• KeyBanc dropped Cedar Fair (NYSE: FUN) to Hold from Buy due to weak operational trends and reduced likelihood of asset sales.
• Realty Income (NYSE: O) was downgraded to Neutral from Buy by Janney Montgomery, based on valuation.
• Cowen lowered Energy Conversion (NASDAQ: ENER) to Neutral from Outperform.
• Raymond James lowered Limelight (NASDAQ: LLNW) to Underperform from Market Perform.
• Morgan Stanley dropped Bristol-Myers (NYSE: BMY) to Equal Weight from Overweight.

Analyst initiations:

• Jefferies initiated Agnico Eagle (NYSE: AEM) with a Buy rating, as the firm thinks that the company's stock will better reflect gold pricing and growth.
• Disney (NYSE: DIS) was initiated with a Hold rating by Stifel Nicolaus, which cites valuation and the timing of a recovery in consumer spending.
• Newmont Mining (NYSE: NEM) was initiated with a Buy rating by Jefferies, which thinks that the stock's valuation will increase as investors discount a higher value of gold going forward.
• Dollar General (DG) was initiated with a Buy by SunTrust.
• Coverage of Marvell Technology (NASDAQ: MRVL) was assumed with an Outperform by Credit Suisse.
• BP (NYSE: BP) was started with an Outperform by Raymond James.