Benzinga's Top Pre-Market Losers

Helmerich & Payne Inc HP moved down 0.96% to $58.70 in the pre-market session. Analysts at Goldman Sachs downgraded Helmerich & Payne from “buy” to “neutral.” Rubicon Technology Inc RBCN shares fell 0.89% to $12.27 in the pre-market trading. RBCN is scheduled to report its Q4 results on February 23, 2012. McKesson Corporation MCK dipped 0.42% to $81.00 in the pre-market session. MCK's trailing-twelve-month profit margin is 1.09%. FMC Technologies Inc FTI dipped 0.30% to $53.85 in the pre-market session. FMC Technologies is all set to report its Q4 results on February 14, 2012.