Benzinga's Top Pre-Market Losers

Ancestry.com Inc

dipped 12.08% to $23 in the pre-market session. ACOM shares have dropped 33.50% over the past 52 weeks, while the S&P 500 index has gained 1.17% in the same period. Simon Property Group Inc

fell 6.07% to $146.60 in the pre-market trading. SPG's PEG ratio is 3.55. Symantec Corporation

moved down 4.85% to $14.70 in the pre-market session. Analysts at Goldman Sachs downgraded Symantec from “neutral” to “sell.” HCP Inc

lost 3.47% to $40.00 in the pre-market session. HCP's trailing-twelve-month ROA is 4.19%.