UPGRADES
US BioEnergy USBE Soleil Sell » Hold
TIBCO Software TIBX Bear Stearns Underperform » Peer Perform
PetroChina PTR Bear Stearns Underperform » Peer Perform
Omega Health OHI UBS Sell » Neutral
Anglo American AAUK HSBC Securities Neutral » Overweight
CNOOC Ltd CEO Citigroup Hold » Buy
DOWNGRADES
Hecla Mining HL CIBC Wrld Mkts Sector Perform » Sector Underperform
