Benzinga's Top Upgrades (FTO, STJ, K, NTAP)

Frontier Oil Corporation

was upgraded by BofA/Merrill from "neutral" to "buy." FTO's shares closed at $22.42 on Friday. Frontier Oil's trailing-twelve-month revenue is $5.33 billion. Deutsche Bank upgraded St. Jude Medical Inc

from "hold" to "buy." STJ's shares closed at $41.96 on Friday. St. Jude's trailing-twelve-month operating margin is 26.74%. UBS upgraded Kellogg Company

from “neutral” to “buy.” Kellogg's shares closed at $53.42 on Friday. Kellogg's trailing-twelve-month ROE is 58.14%. Analysts at Wunderlich upgraded NetApp Inc

from “hold” to “buy.” NTAP's shares closed at $57.93 on Friday. NetApp's trailing-twelve-month ROE is 21.07%.