Analyst upgrades:

• Keefe Bruyette upgraded BB&T (NYSE: BBT) to Market Perform from Underperform as it believes downside risk has been reduced following the company's capital raise. The firm raised its target price to $23 from $15.
  
• Janney Montgomery upgraded FEI Company (NASDAQ: FEIC) to Buy from Neutral on expectations margins will improve and various country stimulus packages will provide benefits in 2010. The firm has a $31 target on the stock.
  
• Citigroup upgraded Tyco Electronics (NYSE: TEL) to Buy from Hold as it believes automotive headwinds are priced in and the company's long-term fundamentals are intact. The firm raised its target price to $25 from $19.
• Barrick Gold (NYSE: ABX) was upgraded to Outperform from Sector Perform at RBC Capital.
  
• J.B. Hunt (NYSE: JBHT) was raised to Overweight from Equal Weight at Stephens.
  
• Roper Industries (NYSE: ROP) was upgraded at Oppenheimer to Outperform from Perform.

Analyst upgrades:

• Citigroup upgraded Cooper Industries (NYSE: CBE) to Hold from Sell to reflect improving macro indicators and a belief negative earnings revisions are unlikely going forward. The firm raised its target price to $37 from $28.
  
• Royal Bank of Scotland upgraded Siemens (NYSE: SI) to Buy from Hold on expectations the company will benefit from an economic recovery.
  
• Banc of America/Merril upgraded State Street (NYSE: STT) to Buy from Neutral and raised their price target to $50 from $40 following stress test results that show the company does not need additional capital. The analyst said the news "clears one of the bars on capital concerns."
  
• Teradata (NYSE: TDC) was raised to Market Weight from Underweight at Thomas Weisel.
  
• Target (NYSE: TGT) was lifted to Overweight from Neutral at JP Morgan.
  
• Diageo (NYSE: DEO) was upgraded at UBS to Neutral from Sell.

Analyst upgrades:

• JMP Securities upgraded CB Richard Ellis (NYSE: CBG) to Outperform from Market Perform. The analyst believes the new Public-Private Investment Program will create liquidity, which will result in some degree of activity. Shares were also upgraded at JP Morgan to Overweight from Neutral.
  
• Thomas Weisel upgraded Linear Tech (NASDAQ: LLTC) to Overweight from Market Weight due to stabilizing business and favorable end market exposure.
  
• UBS upgraded PepsiCo (NYSE: PEP) to Buy from Neutral and raised its target to $60 from $57 due to moderating input costs, earnings and investment flexibility, improving U.S. beverage business, and leverage from its market share in food.
• Tibco (NASDAQ: TIBX) was raised to Buy from Neutral at Goldman.
  
• Philips Electronics (NYSE: PHG) was upgraded at ING Group to Buy from Hold.
  
• Hospira (NYSE: HSP) was upgraded to Outperform from Market Perform at Leerink.

Analyst upgrades:

• Jefferies upgraded Legg Mason (NYSE: LM) to Buy from Hold on valuation following the recent sell-off, as they find the risk/reward attractive at current levels. However, the firm lowered their target to $23 from $44.
  
• Merriman raised First Solar (NASDAQ: FSLR) to Buy from Neutral after the company showed "industry leading growth" in Q3. The firm has a 12-month price target range of $185 to $195 per share.
• Ladenburg upgraded KeyCorp (NYSE: KEY) to Buy from Neutral.
• Citigroup upgraded shares of Silicon Laboratories (NASDAQ: SLAB) to Buy from Hold on valuation and expects the company to post above average industry growth in 2009.
• Janus Capital (NYSE: JNS) was upgraded to Neutral from Underweight at JP Morgan.
  
• Associated Estates Realty (NYSE: AEC) was upgraded to Outperform from Neutral at Baird.
  

Analyst downgrades:

The earnings crunch rolls on, and here are a few of the highlights of this past week's earnings coverage from BloggingStocks:

• Activision Inc. (NASDAQ: ATVI) earnings soared on popularity of Guitar Hero and other game franchises.
• Arch Coal Inc. (NYSE: ACI) beat earnings expectations and offered revised guidance.
• Avon Products Inc. (NYSE: AVP) beat estimates despite lower profits due to restructuring costs.
• Chattem Inc. (NASDAQ: CHTT) beat estimates and raised its guidance.
• Cisco Systems Inc. (NASDAQ: CSCO) met estimates but a weak forecast raised concerns.
• Dionex Corp. (NASDAQ: DNEX) beat estimates on strength in petrochemical and food/beverage markets.
• Electronic Data Systems Corp. (NYSE: EDS) earnings fell, helping to raise concerns about tech stocks.
• Flextronics International Ltd. (NASDAQ: FLEX) beat estimates and affirmed its outlook.
• Gannett Inc. (NYSE: GCI) missed fourth-quarter earnings estimates on lower ad revenue.
• Las Vegas Sands Corp. (NYSE: LVS) missed expectations due to rising construction costs.
• MGM Mirage (NYSE: MGM) forecast it would beat earnings expectations by as much as 10 cents a share.
• Old Dominion Freight Line Inc. (NASDAQ: ODFL) beat revenue estimates and raised its guidance.
• RealNetworks Inc. (NASDAQ: RNWK) warned it would miss first-quarter and full-year expectations.
• Silicon Laboratories (NASDAQ: SLAB) beat expectations and raised its guidance.
• THQ Inc. (NASDAQ: THQI) posted disappointing results that included cancelled game franchises.
• Time Warner Inc. (NYSE: TWX) met estimates and announced restructuring plans (see transcript).
• Unilever (NYSE: UL) fourth-quarter net income tanked on a sell-off of its European frozen food business.
• Walt Disney Co. (NYSE: DIS) posted better-than-expected results on gains in TV and theme parks.

Silicon Laboratories (NASDAQ: SLAB) designs and develops analog-intensive, mixed-signal integrated circuits (ICs) for a broad range of applications. Its products are commonly found in mobile handsets, satellite set top boxes, automotive sensors, radio tuners, industrial controls and optical networking equipment. Silicon Laboratories is a fabless company, employing Taiwan Semiconductor Manufacturing (NYSE: TSM) to produce its ICs. Most sales are made to customers outside the United States. Texas Instruments (NYSE: TXN) is a major competitor.

The firm pleased investors last week, when it reported Q4 EPS of 46 cents and revenues of $100 million. Analysts had been expecting 38 cents and $95.6 million. Management also guided Q1 revenues to $93-$97 million, versus consensus of $90 million. Lehman Brothers subsequently reiterated its "overweight" rating on the issue. Kaufman Brothers and Wedbush Morgan reiterated "buys". The brokers declared price targets in the $37-$40 range.

Silicon Labs (NASDAQ: SLAB) is trading up 12% on strong earnings.

Harmonic (NASDAQ: HLIT) is up almost 10% on a good quarter.

Websense (NASDAQ: WBSN) is trading higher by 8% on earnings.

Align Technology (NASDAQ: ALGN) is off almost 20% on weak earnings.

Yahoo! (NASDAQ: YHOO) is trading down 10% on a poor 2008 outlook.

China Life (NYSE: LFC) is down 6% on sell-off in Chinese stocks.

Stocks may trade differently in the regular session than the do in the pre-market.

Douglas A. McIntyre is an editor at 247wallst.com.

Mixed-signal semiconductor designs can offer consumer electronics manufacturers significant advantages in performance, size, cost and power consumption. One of the best known designers of such integrated circuits is headquartered in Austin, Texas.

Silicon Laboratories (NASDAQ: SLAB) designs and develops analog-intensive, mixed-signal integrated circuits (ICs) for a broad range of applications. Its products are commonly found in mobile handsets, satellite set top boxes, automotive sensors, radio tuners, industrial controls and optical networking equipment. Silicon Laboratories is a fabless company, employing Taiwan Semiconductor Manufacturing (NYSE: TSM) to produce its ICs. Most sales are made to customers outside the United States. Texas Instruments (NYSE: TXN) is a major competitor.

The firm pleased investors last week when it reported Q3 EPS of 36 cents and revenues of $87.9 million. Analysts had been expecting 30 cents and $83 million. Management also guided Q4 revenues to $93-$97 million, versus consensus of $90 million. Wedbush Morgan, Lehman Brothers and Deutsche Securities subsequently reiterated "buy" recommendations on the issue. The share price popped on the news and then moved into a bullish "flag" consolidation pattern. Stocks frequently exit flags moving in the same direction they were traveling on entry. In this case, that would be to the upside.

MOST NOTEWORTHY: Xilinx, Inc (XLNX), Red Robin Gourmet Burgers, Inc (RRGB), Ingram Micro Inc (IM), Silicon Laboratories (SLAB) and Comtech Group, Inc (COGO) were today's more noteworthy initiations:

• Deutsche Bank believes upside remains on Xilinx Inc's (NASDQ: XLNX) margins and tax rates, initiating shares with a Buy rating and $38 target.

• JP Morgan waits for improved new unit volumes and better earnings visibility before getting more constructive on Red Robin Gourmet Burgers Inc (NASDAQ: RRGB) and initiated shares with a Neutral rating.

• Given the lack of catalysts to improve margins above their peers, JP Morgan doesn't expect multiple expansions from Ingram Micro (NYSE: IM) in the near-term, assuming shares with a Neutral rating.

• Deutsche Bank expects Silicon Labratories (NASDAQ:: SLAB) multiples to expand with operating margins, starting shares with a Buy rating and $40 target.

• Needham believes Comtech Group Inc (NASDAQ: COGO) is uniquely leveraged to benefit from the growth of manufacturing in China and started shares with a Buy rating and $21 target...

OTHER INITIATIONS:

• Deutsche Bank initiated shares of Marvell Technology Group (NASDAQ: MRVL) with a Buy rating.

• Citigroup started GTx, Inc (NASDAQ: GTXI) with a Buy rating.

• Pacific Growth started Itron, Inc (NASDAQ: ITRI) with a Buy rating.

• First Marblehead Corp (NYSE: FMD) was initiated with a Hold rating and $38 target at Sandler.

• UBS started Kaiser Aluminum Corp (NASDAQ: KALU) with a Buy rating and $100 target.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).