These are some of this Wednesday’s top analyst upgrades, downgrades, and initiations seen in Wall Street research calls.

Advanced Semiconductor Engineering, Inc. (NYSE: ASX) Cut to Neutral at BofA/ML.
Apple Inc. (NASDAQ: AAPL) Reiterated Outperform but raised target to $600 at Credit Suisse.
The Blackstone Group LP (NYSE: BX) Raised to Buy at Goldman Sachs.
Broadcom Corporation (NASDAQ: BRCM) Reiterated Buy with $46 target at Argus.
Ciena Inc. (NASDAQ: CIEN) Maintained Buy with $21 target at Argus.
Comerica Inc. (NYSE: CMA) Cut to Sell at Stifel Nicolaus.
Dell Inc. (NASDAQ: DELL) Cut to Neutral at Citigroup; Cut to Hold at Needham.
Dendreon Corporation (NASDAQ: DNDN) Started as Neutral at Citigroup.
E-commerce China Dangdang Inc. (NYSE: DANG) Raised to Outperform at Credit Suisse.
Gilead Sciences Inc. (NASDAQ: GILD) Cut to Market Perform at Bernstein.
Medtronic, Inc. (NYSE: MDT) Cut to Neutral at Credit Suisse.
The Mosaic Co. (NYSE: MOS) Raised to Buy at Canaccord Genuity.
New Oriental Education & Technology Group Inc. (NYSE: EDU) Started as Buy at Jefferies.
Siliconware Precision Industries Co., Ltd. (NASDAQ: SPIL) Cut to Neutral at BofA/ML.
Taiwan Semiconductor Manufacturing Co., Ltd. (NYSE: TSM) Cut to Neutral at BofA/ML.

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