Top Analyst Upgrades & Downgrades (AKS, ALTR, BRCM, CPN, CTL, DELL, EW, JDSU, MRVL, NMR, STLD, GWW)

Source: Jon Ogg
These are some of the top analyst upgrades, downgrades, and initiations seen from Wall Street brokerage and research firms this Thursday morning.

AK Steel Holding Corp. (NYSE: AKS) Cut to Underperform at BofA/ML.
Altera Corporation (NASDAQ: ALTR) Cut to Underperform as Bear of the Day at Zacks.
Broadcom Corporation (NASDAQ: BRCM) Started as Buy at Canaccord Genuity.
Calpine Corporation (NYSE: CPN) Started as Overweight at JPMorgan.
CenturyLink, Inc. (NYSE: CTL) Cut to Neutral at Goldman Sachs.
Dell Inc. (NASDAQ: DELL) Raised to Overweight at JPMorgan.
Edwards Lifesciences Corporation (NYSE: EW) Cut to Neutral at Credit Suisse.
JDS Uniphase (NASDAQ: JDSU) Cut to Neutral at UBS.
Marvell Technology Group Ltd. (NASDAQ: MRVL) Started as Buy at Canaccord Genuity.
Nomura Holdings Inc. (NYSE: NMR) Raised to Outperform at Credit Suisse.
Steel Dynamics, Inc. (NASDAQ: STLD) Cut to Neutral at BofA/ML.
W.W. Grainger, Inc. (NYSE: GWW) Maintained Outperform as Bull of the Day at Zacks.

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