Top Analyst Upgrades & Downgrades (AER, AYR, BBY, BBT, CMG, CREE, HPQ, JDSU, LDK, LOGI, LULU, RIMM, SHLD, SINA, SU, TSO, VRSK)

These are some of the top analyst upgrades, downgrades, and initiations seen from Wall Street research calls this Friday morning.

AerCap Holdings N.V. (NYSE: AER) Started as Outperform with $16 target at Credit Suisse.
AirCastle LTD (NYSE: AYR) Started as Neutral with $14 target at Credit Suisse.
Best Buy Co., Inc. (NYSE: BBY) Raised to BUy at S&P Equity Research (late Thursday).
BB&T Corporation (NYSE: BBT) Started as Hold at Citigroup.
Chipotle Mexican Grill, Inc. (NYSE: CMG) Raised to Outperform at Morgan Keegan.
Cree Inc. (NASDAQ: CREE) Cut to Market Perform at JMP.
Hewlett-Packard Co. (NYSE: HPQ) Cut to Neutral at UBS; Cut to Neutral at Baird.
JDS Uniphase Corporation (NASDAQ: JDSU) Maintained Buy but cut target to $17 at Argus.
LDK Solar Co., Ltd. (NYSE: LDK) cut to Neutral at Piper Jaffray.
Logitech International (NASDAQ: LOGI) Cut to Underperform as Bear of the Day at Zacks.
Lululemon Athletica Inc. (NASDAQ: LULU) Raised to Equal-Weight at Barclays.
Research in Motion Ltd. (NASDAQ: RIMM) Raised to Hold from Underperform at Jefferies.
Sears Holdings Corp. (NASDAQ: SHLD) Maintained Hold at Argus.
Sina Corporation (NASDAQ: SINA) Cut to Neutral at Credit Suisse.
Suncor Energy INc. (NYSE: SU) Raised to Buy at BofA/ML.
Tesoro Corporation (NYSE: TSO) Maintained Outperform as Bull of the Day at Zacks.
Verisk Analytics, Inc. (NASDAQ: VRSK) Raised to Outperform at KBW.

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JON C. OGG