Benzinga's Top Downgrades

Macquarie downgraded Aon Corporation

from “outperform” to “neutral.” Aon's shares closed at $48.09 yesterday. Aon's trailing-twelve-month ROE is 11.86%. Analysts at Wells Fargo downgraded AboveNet Inc

from “outperform” to “market perform.” ABVT's shares closed at $83.17 yesterday. AboveNet's trailing-twelve-month ROA is 8.46%. Leerink downgraded Human Genome Sciences Inc

from “outperform” to “market perform.” HGSI's shares closed at $14.59 yesterday. Human Genome Sciences' trailing-twelve-month profit margin is -226.76%. RBC Capital downgraded Martin Marietta Materials Inc

from “outperform” to “sector perform.” MLM's shares closed at $77.62 yesterday. Martin Marietta Materials' PEG ratio is 2.75.