Benzinga's Top #PreMarket Losers

shares fell 34.37% to $13.88 in pre-market trading after the company issued a negative revenue outlook. Various analysts including Deutsche Bank, Janney Capital, Stifel Nicolaus, Baird downgraded ChannelAdvisor today.

fell 3.27% to $59.50 in pre-market trading after jumping 13.34% on Monday. Analysts at JP Morgan initiated coverage on Juno Therapeutics with a Overweight rating.

shares dropped 2.80% to $72.85 in pre-market trading after declining 3.34% on Monday Crude oil futures fell 3.17% to trade at $44.61 a barrel.

shares dropped 1.15% to $44.55 in pre-market trading after rising 0.16% on Monday.

shares declined 1.01% to $76.54 in pre-market trading after rising 3.22% on Monday. Gold futures gained 0.51% to trade at $1,239.10 an ounce.