Analyst upgrades, downgrades and initiations: AMZN, BLK, BNI, CCL, JPM, PNC, UTX ...

Analyst upgrades:

Deutsche Bank upgraded Blackrock (NYSE: BLK) to Buy from Hold as it believes the BGI acquisition is becoming more accretive with the market rally and that the company's core trends are healthy. The firm raised its target on shares to $230 from $180.
Citigroup upgraded Burlington Northern (NYSE: BNI) to Hold from Sell as it believes the risk/reward on shares is balanced based on 2010 estimates. Citi raised its target on shares to $89 from $75.
Auriga upgraded Eclipsys (NASDAQ: ECLP) to Buy from Hold on expectations the company's margin expansion initiatives will drive benefits in 2010 and 2011. The firm raised its target on shares to $24 from $16.
Seagate (NASDAQ: STX) was upgraded to Overweight from Market Weight at Thomas Weisel and to Buy from Hold at Deutsche Bank.
Web.com (NASDAQ: WWWW) was upgraded to Outperform from Market Perform at FBR Capital.
CenturyTel (NYSE: CTL) was upgraded to Overweight from Equal Weight at Morgan Stanley.

Analyst downgrades:

Baird downgraded Cintas (NASDAQ: CTAS), G&K Services (NASDAQ: GKSR), and UniFirst (NYSE: UNF) to Underperform from Neutral. The rating changes are based on rich valuations, deteriorating conditions, and "horrendous" pricing. The firm raised its target on Cintas to $28 from $27, kept its $21 target on G&K, and lowered its target on UniFirst to $39 from $42.
Credit Suisse downgraded Carnival (NYSE: CCL) to Neutral from Outperform but raised its target to $37 from $34. The firm believes the yield recovery play is now widely appreciated and that risk/reward is balanced.
Wells Fargo downgraded Stryker (NYSE: SYK) to Market Perform from Outperform based on valuation and the overhand from FDA issues.
Commercial Metals (NYSE: CMC) was downgraded to Neutral from Buy at UBS.
Credicorp (NYSE: BAP) was downgraded to Neutral from Overweight at JPMorgan.
hhgregg (NYSE: HGG) was downgraded to Neutral from Buy at Janney Montgomery.

Analyst initiations:

Jefferies expects AboveNet's (NYSE: ABVT) revenue growth to drive free cash flow and EBITDA expansion. The firm started shares with a Buy rating and $55 target.
Wells Fargo initiated United Technologies (NYSE: UTX) with an Outperform rating. The firm predicts that the company's EPS will increase in the double digits in 2010 even if the economy does not grow.
Oppenheimer initiated Weingarten Realty (NYSE: WRI) with an Underperform rating and $16 target. The firm believes the company's valuation is unattractive and it predicts that the shares will be pushed downwards.
Amazon.com (NASDAQ: AMZN) was initiated with a Sell rating at Brigantine.
JPMorgan (NYSE: JPM) and SunTrust (NYSE: STI) were initiated with Buy ratings and a $53 target and $30 target, respectively, at Collins Stewart.
PNC Financial (NYSE: PNC) was initiated with a Market Perform rating at Wells Fargo.