
Alcoa Inc. (NYSE: AA) was downgraded to Underperform from Neutral at BofA/Merrill Lynch.
Colgate-Palmolive Co. (NYSE: CL) was downgraded to Hold from Buy at Argus.
Maxim Integrated Products Inc. (NASDAQ: MXIM) was downgraded to Equal Weight from Overweight at Morgan Stanley.
Nordstrom Inc. (NYSE: JWN) was downgraded to Neutral from Buy at Sterne Agee.
ON Semiconductor Corp. (NASDAQ: ONNN) was started as Underweight at Morgan Stanley.
Portugal Telecom SGPS S.A. (NYSE: PT) was downgraded to Neutral from Buy at Goldman Sachs after earnings; ADRs trade at $3.85 against a 52-week range of $3.47 to $5.91.
STMicroelectronics N.V. (NYSE: STM) was downgraded to Underweight From Neutral at HSBC.
Credit Suisse has some mixed views on two key silver miners after earnings and after the 18% run-up in silver.