Benzinga's Top Upgrades

Credit Suisse upgraded Thoratec

from Neutral to Outperform. The price target for Thoratec has been raised from $27.00 to $35.00. Thoratec's shares closed at $29.20 yesterday. Jefferies upgraded Prestige Brand Holdings

from Underperform to Hold. The price target for Prestige Brand Holdings is set to $30. Prestige Brand Holdings' shares closed at $30.80 yesterday. Analysts at Argus Research upgraded Tyco International (Switzerland)

from Hold to Buy. Tyco International's shares closed at $42.60 yesterday. Analysts at Barclays upgraded Wright Medical Group

from Equal-weight to Overweight. The price target for Wright Medical Group has been raised from $36.00 to $37.00. Wright Medical Group's shares closed at $27.60 yesterday.