Analyst Upgrades

• Heico (HEI) to outperform from market perform at FBR Capital.
• Eaton (ETN), Silgan Holdings (SLGN), MYR Group (MYRG) and Shaw Group (SHAW) to outperform from neutral at RW Baird.
• Infosys (INFY) to buy from Neutral at Nomura.
• Isle of Capri (ISLE) to buy from neutral at Merriman.
• NovaGold (NG) to sector perform from underperform at RBC Capital.
• CarMax (KMX) and Rockwell Collins (COL) to outperform from neutral at Credit Suisse.
• DHT Holdings (DHT) to overweight from neutral at JPMorgan.
• Cabot Oil & Gas (COG) to overweight from underweight at Morgan Stanley.

Analyst Upgrades

• Amazon.com (AMZN) was upgraded to buy from neutral at BofA/Merrill.
• Netflix (NFLX) was upgraded to outperform from perform at Oppenheimer and to neutral from sell at Janney Montgomery.
• Janney Montgomery also upgraded BJ's Wholesale (BJ) to buy from neutral.
• RW Baird upgraded Kforce.com (KFRC), SFN Group (SFN) and Young Innovations (YDNT) to outperform from neutral.
• NetSuite (N) was upgraded to neutral from underweight and Select Comfort (SCSS) was upgraded to overweight from neutral at Piper Jaffray.
• Flushing Financial (FFIC) was upgraded to outperform from market perform at Keefe Bruyette.
• National Instruments (NATI) was upgraded to buy from hold at Stifel Nicolaus.
• RBC Capital upgraded MDS Inc. (MDZ) to outperform from sector perform.

Analyst Upgrades

• Piper Jaffray upgraded MWI Veterinary Supply (MWIV) to overweight from neutral and raised its target for shares to $50.
• UBS believes Nokia (NOK) is well positioned for smartphone growth. The firm upgraded shares to buy from neutral and has a $19.55 price target.
• Wells Fargo upgraded Cedar Fair (FUN) to outperform from market perform. After the company's merger agreement with Apollo was terminated, the firm thinks the company will be able to refinance its debt, removing an uncertainty.
• Darden (DRI) was upgraded to outperform from neutral at Cowen.
• KeyCorp (KEY) was upgraded to buy from neutral at Goldman.
• Bank of Ireland (IRE) was upgraded to hold from sell at RBS.

Today was down to the wire, where you didn't know if we'd see a positive or negative close until right before 4:00 PM. A very positive regional economic report from Chicago was trumped by what some feared was a NASDAQ bomb threat because of sloppy reporting in and around New York City, and because of media outlets taking advantage of post-failed-terror hype. Oil inventories were mixed but prices still rose on the day.

Here were today's unofficial closing bell levels:

Dow 10,548.51 +3.10 (0.03%)
S&P 500 1,126.42 +0.23 (0.02%)
Nasdaq 2,291.28 +2.88 (0.13%)

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Top Analyst Upgrades/Downgrades

Analyst upgrades:

• Credit Suisse upgraded shares of Novartis (NYSE: NVS) to Neutral from Underperform as they believe the stock's defensive characteristics justify a premium valuation.
  
• Merrill raised Dreamworks (NYSE: DWA) to Buy from Neutral and has increased confidence in DWA's sustainable success following the performance of Kung Fu Panda and new revenue streams.
  
• Anadarko Petroleum (NYSE: APC) was raised to Buy from Hold at Stanford on valuation.
  
• Goldman upgraded Smurfit-Stone (NASDAQ: SSCC) and Canadian National (NYSE: CNI) to Buy from Neutral and added International Paper (NYSE: IP) to the Conviction Buy List.
  
• Northern Trust (NASDAQ: NTRS) was upgraded to Buy from Neutral at Merrill.

Analyst downgrades:

• Jefferies downgraded shares of Savvis (NASDAQ: SVVS) to Hold from Buy and lowered the target to $17 from $20 to reflect decreasing visibility from economic headwinds and expectations for increased capex.
  
• Citigroup downgraded Regions Financial (NYSE: RF) to Sell from Hold as they believe fundamentals are not in-line with the current valuation following the recent rally.
  
• Merrill lowered their General Electric (NYSE: GE) estimates below consensus and downgraded shares to Neutral from Buy citing increased fundamental pressures on the company's GE Capital unit. GE's target was cut to $28 from $37.50.