Benzinga's Top Downgrades

Analysts at William Blair downgraded Caterpillar Inc. CAT from Outperform to Market Perform. Caterpillar shares closed at $65.79 on Thursday. Analysts at Stifel Nicolaus downgraded Emerge Energy Services LP EMES from Hold to Sell. Emerge Energy Services shares closed at $11.73 on Thursday. Imperial Capital downgraded Atlas Air Worldwide Holdings, Inc. AAWW from Outperform to In-line. The price target for Atlas Air Worldwide has been lowered from $65 to $42. Atlas Air Worldwide shares closed at $36.22 on Thursday. Analysts at William Blair downgraded Cummins Inc. CMI from Outperform to Market Perform. The price target for Cummins has been lowered from $150 to $110. Ent Cummins ergy shares closed at $111.22 on Thursday. Cowen & Company downgraded Virgin America Inc VA from Outperform to Market Perform. The price target for Virgin America has been raised from $38 to $39. Virgin America shares closed at $36.13 on Thursday.