OYO (OYOG) (DUF) (ERIC) (RIMM) (SAP) (SDT) (VRUS) Downgraded

OYO Geospace Co. (NASDAQ: OYOG), Duff & Phelps Co. (NYSE: DUF), Telefonaktiebolaget LM Ericsson (NASDAQ: ERIC), Research In Motion (NASDAQ: RIMM), SAP Aktiengesellschaft (NYSE: SAP), SandRidge Mississippian Trust I (NYSE: SDT) and Pharmasset (NASDAQ: VRUS) were downgraded by analysts.

Duff & Phelps Co. (DUF) was downgraded by Keefe, Bruyette & Woods to a “Market Perform” rating.

Telefonaktiebolaget LM Ericsson (ERIC) was downgraded by UBS AG (NYSE:UBS) from a “Buy” rating to a “Neutral” rating.

OYO Geospace Co. (OYOG) was downgraded by Zacks Investment Research from an “Outperform” rating to a “Neutral” rating.

Research In Motion (RIMM) was downgraded by Brigantine from a “Buy” rating to a “Hold” rating.

Research In Motion (RIMM) was downgraded by Macquarie from an “Outperform” rating to a “Neutral” rating.

Research In Motion (RIMM) was downgraded by Atlantic Equities to an “Underweight” rating.

SAP Aktiengesellschaft (SAP) was downgraded by Bank of America (NYSE:BAC) to a “Neutral” rating.

SandRidge Mississippian Trust I (SDT) was downgraded by Robert W. Baird from a “Neutral” rating to an “Underperform” rating.

Pharmasset (VRUS) was downgraded by analysts at Robert W. Baird from an “Outperform” rating to a “Neutral” rating. They have a price target of $137.00 on the company.