Top Analyst Upgrades and Downgrades (AMSC, SOLR, MRO, MIPI, SUN, TSO, TIF, UPS, VLO, ZION)

These are this Thursday’s top analyst upgrades, downgrades, and initiations seen in Wall Street research calls:

American Superconductor Corporation (NASDAQ: AMSC) Raised to Buy at Deutsche Bank.
GT Solar International, Inc. (NASDAQ: SOLR) Started as Buy at Wunderlich.
Marathon Oil Corporation (NYSE: MRO) Started as Outperform at Credit Suisse.
Molecular Insight Pharmaceuticals (NASDAQ: MIPI) Cut to Market Perform at Wells Fargo.
Sunoco Inc. (NYSE: SUN) Started as Outperform at Credit Suisse.
Tesoro Corporation (NYSE: TSO) Started as Neutral at Credit Suisse.
Tiffany & Co. (NYSE: TIF) Started as Buy at Deutsche Bank.
United Parcel Service (NYSE: UPS) Raised to Overweight at Piper Jaffray.
Valero Energy Corp. (NYSE: VLO) Started as Outperform at Credit Suisse.
Zions Bancorp (NASDAQ: ZION) Raised to Buy at SunTrust Robinson Humphrey.

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JON OGG