These are some of the top analyst upgrades, downgrades and initiations seen in Wall St. research calls this Thursday.
Altera Corp. (NASDAQ: ALTR) started at Neutral at SunTrust Robinson Humphrey.
Analog Devices Inc. (NASDAQ: ADI) reiterated Buy but raised target to $46 at Argus.
AvalonBay Communities Inc. (NYSE: AVB) raised to Market Perform at BMO.
Biogen Idec Inc. (NASDAQ: BIIB) reiterated Buy and raised target to $160 at Argus.
CarMax Inc. (NYSE: KMX) raised to Buy with $42 target at Goldman Sachs.
Cree Inc. (NASDAQ: CREE) cut to Hold at Deutsche Bank.
EMC Corp. (NYSE: EMC) started as Outperform at CLSA.
IAC/InterActiveCorp (NASDAQ: IACI) raised to Outperform at Wells Fargo.
LinnCo LLC (NASDAQ: LNCO) started as Buy at Citi.
Linn Energy LLC (NASDAQ: LINE) resumed with Buy rating at Citi
Mylan Inc. (NASDAQ: MYL) reiterated Buy but raised 2012/2013 earnings estimates at Argus.
NetApp Inc. (NASDAQ: NTAP) started as Underperform at CLSA.
NXP Semiconductors N.V. (NASDAQ: NXPI) started as Buy at SunTrust Robinson Humphrey.
PennyMac Mortgage Investment Trust (NYSE: PMT) reiterated Outperform with $27 target at Credit Suisse.
Rigel Pharmaceuticals Inc. (NASDAQ: RIGL) started as Neutral at UBS.
TASER International Inc. (NASDAQ: TASR) cut to Neutral at JPMorgan.
Timken Co. (NYSE: TKR) cut to Hold at Jefferies.
VMware Inc. (NYSE: VMW) started as Buy at CLSA.
Xilinx Inc. (NASDAQ: XLNX) started at Neutral at SunTrust Robinson Humphrey.
JON C. OGG