Analyst upgrades: ANFGY, MER, VCLK, TMX and NTAP

MOST NOTEWORTHY: Antofagasta plc, Merrill Lynch, Valueclick, Telmex and Network Appliance were today's noteworthy upgrades:

UBS upgraded shares of Antofagasta (OTC: ANFGY) to Neutral from Sell as they see a strong possibility of delays to copper supply due to an earthquake on Nov. 14 in northern Chile.
Credit Suisse is positive on the appointment of John Thain as Merrill Lynch (NYSE: MER)'s CEO and his ability to get the company back on track strategically. The firm upgraded shares of Merrill to Outperform from Neutral.
Valueclick (NASDAQ: VCLK) was upgraded to Buy from Hold at Citigroup on valuation, as they believe the recent sell-off provides a great entry point.
Citigroup also raised its rating on Telmex (NYSE: TMX) to Buy from Hold after the company announced the spin-off of its international businesses.
Bear Stearns upgraded Network Appliance (NASDAQ: NTAP) to Peer Perform from Underperform following its Q2 report and increased outlook.

OTHER UPGRADES:

RBC Capital upgraded Sciele Pharma (NASDAQ: SCRX) to Sector Perform from Underperform.
Lehman upgraded Amgen (NASDAQ: AMGN) to Overweight from Equal Weight.
W.W. Grainger (NYSE: GWW) was upgraded to Outperform from Market Perform at Morgan Keegan.
Merrill Lynch upgraded Weyerhaeuser (NYSE: WY) to Buy from Neutral.