Analyst upgrades:

• Deutsche Bank upgraded Clorox (NYSE: CLX) to Buy from Hold on valuation and believes upside to earnings forecasts is likely. The firm raised its target on shares to $66 from $65.
• Kaufman Bros. upgraded eBay (NASDAQ: EBAY) to Buy from Hold on expectations improved Marketplace fundamentals will serve as a positive catalyst for shares. The firm raised its price target on the stock to $29 from $22.
• Roth Capital believes Zumiez (NASDAQ: ZUMZ) is well positioned for improved results and margins. The firm, which upgraded shares to Buy from Hold and raised its target to $22 from $16, said September back-to-school results bode well for the holiday season and demonstrate that Zumiez can drive conversion during peak shopping periods.
• Northrop Grumman (NYSE: NOC) was upgraded to Sell from Conviction Sell at Goldman.
• Adobe (NASDAQ: ADBE) was upgraded to Outperform from Neutral at Baird.
• Monster Worldwide (NYSE: MWW) was upgraded to Overweight from Neutral at JPMorgan.

Analyst upgrades:

• FBR Capital upgraded AutoZone (NYSE: AZO) to Market Perform from Underperform on valuation following the company's Q4 results but lowered its target on shares to $134 from $137.
• Citigroup upgraded Calpine (NYSE: CPN) to Buy from Hold on valuation following Wednesday's sell-off. The firm believes Harbinger's share sale reflects an issue with the shareholders, not with the company, and raised its price target on the stock to $16.50 from $13.
• Credit Suisse upgraded Knight Transportation (NYSE: KNX) to Neutral from Underperform and raised its target to $17 from $16 based on valuation and the improved freight environment.
• Citrix Systems (NASDAQ: CTXS) was upgraded to Conviction Buy from Buy at Goldman.
• Webster Financial (NYSE: WBS) was upgraded to Outperform from Sector Perform at RBC Capital.
• Dr. Reddy's Labs (NYSE: RDY) was upgraded to Overweight from Equal Weight at Morgan Stanley.

Analyst upgrades:

• Oppenheimer upgraded FTI Consulting (NYSE:FCN) to Outperform from Perform on expectations the stock will outperform in the second half of 2009 due to easier comparisons and a "deeper and longer" restructuring cycle. The firm has a $62 target on shares.
• Citigroup upgraded Cigna (NYSE:CI) to Hold from Sell to reflect reduced balance sheet risk following the company's capital raise and the potential for a PBM sale. The firm raised its target price to $23 from $13.
• Goldman expects Coca-Cola Enterprises (NYSE:CCE) to benefit from favorable soda demand and lower commodity costs. The firm upgraded shares to Conviction Buy from Buy and has a $20 target on the stock.
• Novellus (NASDAQ:NVLS) was raised to Buy from Neutral at Bank of America/Merrill.
• CME Group (NASDAQ:CME) was upgraded at JP Morgan to Neutral from Underweight.
• Allegiant (NASDAQ:ALGT) was upgraded to Overweight from Equal Weight at Morgan Stanley.
  

This post was written by Minyanville contributor Fil Zucchi.

To highlight defense names in the face of the current spending priorities feels like soaking in gasoline and walking around smoking a cigarette. With that visual as a backdrop, it is also fair to say that Obama is probably just as focused on protecting the motherland as Bush was, and, much as he may dislike it, that will force continued if not increased spending in certain areas of defense. The one name I have been drooling over for years and which is finally coming together in many respects is L-3 Communication (NYSE: LLL).

Analyst upgrades:

• Jefferies upgraded Xilinx (NASDAQ: XLNX) to Buy from Hold and raised its target to $22 from $17 on valuation and the company's "diversified" business.
  
• Barclays expects Steel Dynamics (NASDAQ: STLD) to outperform in Q1 as investors become more comfortable with the company's balance sheet. Shares were upgraded to Overweight from Equal Weight.
  
• Keefe Bruyette upgraded Asset Acceptance (NASDAQ: AACC) to Market Perform from Underperform on valuation but lowered their target to $6 from $8.
• Blackrock (NYSE: BLK) and Intercontinental Exchange (NYSE: ICE) were added to Goldman's Conviction Buy List.
  
• Lattice (NASDAQ: LSCC) was upgraded to Equal Weight from Underweight at Morgan Stanley.

Analyst downgrades:

"As my high school football coach always quipped, 'Offense may win fans, but defense wins games,'" says leading growth stock expert Louis Basenese.

Here, the Oxford Club associate investment director takes a look at his three favorite defense stocks, noting, "When it comes to investing in the current environment, I'm convinced that you can't go wrong with this trio of companies."

"In my view, this sector willl never fall out of favor. The recent development with Russia serves to underscore another point I've been making for years. We always have to be prepared.

"Or, put another way, there will never be a good time for defense cuts, lest we want to leave our country vulnerable.Add it all up, and we can expect defense companies to enjoy steady demand. Even in the face of a recession.

"As the CEO of Rockwell notes, there has been absolutely no fallout in the defense industry as a result of the worldwide credit meltdown or other economic woes. So here's a quick run-down on the three defense companies we prefer for investors.

MOST NOTEWORTHY: Tower sector stocks, Tesco Plc and Alcoa were today's noteworthy upgrades:

• RBC Capital upgraded American Tower (NYSE:AMT), Crown Castle( NYSE::CCI), SBA Comm (NASDAQ:SBAC) to Outperform from Sector Perform citing recent weakness in the tower sector group and a continued favorable outlook.
  
• Merrill upgraded shares of Tesco (Other OTC:TSCDY) to Buy from Neutral as they believe it is the only proven growth stock in the sector.
  
• Soleil upgraded shares of Alcoa (NYSE:AA) to Hold from Sell on valuation following the recent weakness.

OTHER UPGRADES:

• Arch Coal (NYSE:ACI) and Peabody Energy (NYSE:BTU) were upgraded to Buy from Hold at Citigroup.
  
• L-3 Comm (NYSE:LLL) was raised to Outperform from Neutral at Cowen.
  
• Jacobs Engineering (NYSE:JEC) was lifted to Buy from Hold at Morgan Joseph.

Readers of this space know that the investment bias is toward large-cap companies with demonstrated business models and who have a competitive advantage in established markets, preferably with a favorable global trend as a support. But every once in while an exception is made, and with the above in mind, L-3 Communications (NYSE: LLL) is worth a review.

L-3 makes secure and specialized systems for satellite, avionics, and marine communications, with a healthy percentage of its business coming from the U.S. Government.

Analysts like LLL's diversified revenue streams: specialized products (34%) intelligence/communications (22%) government services (25%), and aircraft modernization and maintenance (19%).

"The weak start to 2008 has left many investors scrambling for a safe haven in which to stash their cash," notes Jocelynn Drake, who sees the defense sector as one such haven.

The analyst with Schaeffer's Investment Research explains, "The recent losses suffered by many of the defense-sector components has brought them back to long-term support, creating potentially strong buying opportunities."

"What do General Dynamics (NYSE: GD), Lockheed Martin (NYSE: LMT), Northrop Grumman (NYSE: NOC), and L-3 Communications (NYSE: LLL) have in common? These four defense stocks have enjoyed strong rallies during the past four years.

"In addition, they are all currently resting right near support at their ascending 10-month moving averages. These stocks have benefited from this long-term support level and could use their respective trendlines as springboards to launch them on the next leg of their uptrends.

"What also makes these stocks very appealing from a bullish perspective is that short-term options players are very skeptical of the stocks' outlooks. As a result, options speculators have loaded up on bearish bets toward these securities in an attempt to call a top to their rallies.

Last week Forbes released its annual list of the fastest growing tech stocks, and it shouldn't be much of a surprise that Google Inc. (NASDAQ: GOOG) topped the list, with nearly $15 billion in sales, representing five-year sales growth of 155%, and 30% EPS growth. To make the list, companies had to have significant sales growth over the past year and five years, as well as a good earnings forecast for the next three to five years. Companies with significant legal problems or corporate governance issues were excluded.

Rounding out the top five were Salesforce.com (NYSE: CRM), Ceradyne Inc. (NASDAQ: CRDN), Euronet Worldwide Inc. (NASDAQ: EEFT), and FalconStor Software Inc. (NASDAQ: FALC). Some other familiar names that made the list this year include Red Hat Inc. (NYSE: RHT), L-3 Communications (NYSE: LLL), Adobe Systems Inc. (NASDAQ: ADBE), and Cognizant Technology Solutions (NASDAQ: CTSH). Cognizant has been on Forbes list since its inauguration six years ago. For the full list, see the Forbes article.

Also of interest was the Forbes Fast 15, companies that didn't make the list mentioned above, but which Forbes thought were worth keeping an eye on for their potential. Engineering software maker Ansys Inc. (NASDAQ: ANSS), semiconductor maker Atheros Communications Inc. (NASDAQ: ATHR), Brubaker BioSciences Corp. (NASDAQ: BRKR), and scoreboard maker Daktronics Inc. (NASDAQ: DAKT) top that list. For the full list, see the Forbes article.

So if, like Aaron Katsman, Georges Yared, and Jim Cramer, you are bullish on tech stocks, then there's plenty on the Forbes lists worth taking a look at.

Before the bell: Futures higher as Fed could take more measures

The Boeing Co. (NYSE: BA) shares are down 2% in premarket trading after the it was downgraded to Equal-Weight from Overweight at Morgan Stanley. The broker says the stock is cheap, but claims certain near-term risks related to its new Boeing 787 Dreamliner override the attractive valuation.

Time Magazine published 50 Top 10 Lists of 2007 and Apple Inc.'s (NASDAQ: AAPL) iPhone was, of course, the first in the Top 10 Gadgets.

General Electric Co. (NYSE: GE) could beat the conservative 10% 2008 profit growth forecast it issued Tuesday, analysts think. Despite the forecast being below the growth analysts had estimated, some -- including Goldman Sachs' analyst Deane M. Dray and JPMorganSecurities Inc. analyst C. Stephen Tusa Jr. -- said GE's forecast isn't too bad, in light of the possibility of slowing global growth and declining consumer spending.

For L-3 Communications, the defense never rests. L-3 Communications Holdings, Inc. (NYSE: LLL) makes secure and specialized systems for satellite, avionics, and marine communications, with a healthy percentage of its business coming from the U.S. Government.

Analysts like LLL's diversified revenue stream: specialized products (34%), intelligence/communications (22%), government services (25%), and aircraft modernization and maintenance (19%).

Analysts expect 8%-9% organic revenue growth in 2007 and 7%-8% in 2008, including solid growth in government service and specialized products. The Reuters F2007/F2008 EPS consensus estimates for LLL are $5.95 to $6.51.

The risks? Analysts are keeping their eye on LLL's profit margins, high financial leverage, and ability to increase its low dividend. A substantial decline in U.S. government/defense spending would also hurt L-3's results.

The First Call mean rating for LLL is: Hold [15 firms]. Mean 2008 target: $116.20 [high: $129, low: $108].

Stock Analysis: L-3 Communications is a moderate-risk stock not suitable for low-risk investors. Investors with an investment horizon longer than 2 years should be rewarded from LLL's shares. Sell/Stop Loss if you were to purchase shares in this company: $78.

"The recent market volatility has shaken more than a few traders, leaving them wondering where they should turn next to protect themselves," notes Jocelynn Drake.

But one sector, she notes, that has performed well and should continue to do so, is the defense sector. In particular, the analyst with Schaeffer's Investment Research considers L-3 Communications (NYSE: LLL) and FLIR Systems (NASDAQ: FLIR) as "shining gems."

Drake notes, "Topping the list is L-3 Communications, which makes secure and specialized systems for satellite, avionics, and marine communications such as flight recorders (black boxes), display systems, and wireless telecom gear."

On July 26, she notes, the company reported a second-quarter profit of $1.49 per share, beating the consensus estimate by a nickel. Revenue for the quarter jumped 11% to 3.41 billion. Adding to its good news, she notes, was that L-3 boosted its 2007 earnings outlook.

MOST NOTEWORTHY: AstraZeneca plc (AZN), Aeroflex Inc (ARXX), Symantec Corp (SYMC), Chevron Corp (CVX) and Exxon Mobil Corp (XOM) were just some of today's noteworthy downgrades:

• HSBC downgraded shares of AstraZeneca plc (NYSE: AZN) to Neutral from Overweight as the firm believes investors will have to wait until 2009 for the company to start benefiting from its strategy.

• Aeroflexx Inc (NASDAQ: ARXX) was cut to Hold from Buy at Jefferies with a $14 target based on valuation.

• Thomas Weisel downgraded shares of Symantec Corp (NASDAQ: SYMC) to Market Weight from Overweight citing a lack of near-term catalysts and increased risk from transitions in its business model.

• Chevron Corp (NYSE: CVX) was removed from AG Edwards' Focus Portfolio. The firm believes Chevron offers less upside potential than other companies in the sector.

• Exxon Mobil (NYSE: XOM) was downgraded to Hold from Buy on valuation and its balanced risk/reward profile...

OTHER DOWNGRADES:

• Piper Jaffray cut Juniper Networks, Inc (NASDAQ: JNPR) to Market Perform from Outperform with a $20 target.

• Friedman Billings downgraded L-3 Communications Holdings, Inc (NYSE: LLL) to Market Perform from Outperform.

• MedImmune, Inc (NASDAQ: MEDI) was downgraded to Equal Weight from Overweight at Lehman.

• Hecla Mining Co (NYSE: HL) was cut to Sector Underperformer from Sector Performer at CIBC based on valuation.

• Merrill Lynch cut Wendy's International (NYSE: WEN) to Sell from Neutral.

• Stanford downgraded shares of Sirius Satellite Radio Inc (NASDAQ: SIRI) to Hold from Buy with a $3 target.

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

Monday April 23

• CA World 2007 to be held in Las Vegas
• L-3 Communications Holdings, Inc. (NYSE: LLL) to report Q1 earnings, conference call at 10 a.m.

Tuesday April 24

• Defense companies Lockheed Martin Corp. (NYSE: LMT) and Northrop Grumman Corp. (NYSE: NOC) to report Q1 earnings.
• Low-cost airline Jetblue Airways Corp. (NASDAQ: JBLU) to report Q1 earnings. Will Jetblue follow Southwest Airlines Co.'s (NYSE: LUV) disappointing report (which caused two analyst downgrades)? Or is the recent increased investment buy George Soros a sign that Jetblue is doing better?
• Alternative Energy Conference, hosted by Friedland Investment Events, to be held in NY.

Wednesday April 25

• The Boeing Co. (NYSE: BA) to report Q1 earnings; conference call at 10:30 a.m. Will Boeing discuss Airbus's decision to halve the price of its A350 planes in order to become more competitive with Boeing's 787 Dreamliner?
• Market darling Apple Inc. (NASDAQ: AAPL) will also report Q2 earnings, conference call at 5 p.m.

Thursday April 26

• XM Satellite Radio Holdings, Inc. (NASDAQ: XMSR) to report Q1 earnings; conference call at 10 a.m. Investors will look for any comments relating to the state of the potential merger with Sirius Satellite Radio Inc. (NASDAQ: SIRI).

Friday April 27

• YRC Worldwide, Inc. (NASDAQ: YRCW) to report Q1 earnings; conference call at 9:30 a.m.