Benzinga's Top Downgrades

Analysts at Piper Jaffray downgraded

Stone Energy CorporationSGY

from Neutral to Underweight. Stone Energy shares closed at $2.92 on Thursday. Needham downgraded

Pernix Therapeutics Holdings IncPTX

from Buy to Hold. Pernix Therapeutics shares closed at $1.84 on Thursday. JMP Securities downgraded

ZAIS Financial CorpZFC

from Market Outperform to Market Perform. ZAIS Financial shares closed at $15.30 on Thursday. Analysts at Goldman Sachs downgraded

Helmerich & Payne, Inc. HP

from Buy to Neutral. Helmerich & Payne shares closed at $61.95 on Thursday. Analysts at Baird downgraded

Servicemaster Global Holdings IncSERV

from Outperform to Neutral. The target price for ServiceMaster Global has been lowered from $45 to $42. ServiceMaster Global shares closed at $38.66 on Thursday. Atlantic Equities downgraded

Mosaic CoMOS

from Neutral to Underweight. Mosaic shares closed at $29.45 on Thursday. Analysts at SEB Equity Research downgraded

Statoil ASA(ADR) STO

from Buy to Hold. Statoil shares closed at $15.27 on Thursday. Analysts Bank of America downgraded

Williams-Sonoma, Inc. WSM

from Neutral to Underperform. Williams-Sonoma shares closed at $57.88 on Thursday. Deutsche Bank downgraded

Blackstone Group LPBX

from Buy to Hold. The target price for Blackstone Group has been lowered to $28. Blackstone Group shares closed at $27.34 on Thursday. Analysts at Cowen & Company downgraded

Clayton Williams Energy, Inc. CWEI

from Market Perform to Underperform. The target price for Clayton Williams Energy has been lowered to $6. Clayton Williams Energy shares closed at $12.41 on Thursday.