If you are looking for clues telling you which stocks have a good chance of increasing in value, you might want consider watching what insiders are doing. After all, talk is cheap, but when insiders put their own money on the line, you should sit up and take note.

GTx Inc. (GTXI) topped the insider-buying charts for the week ending July 9 as insiders snapped up 5,467,860 shares of company stock at a market value of $15,310,008. During the past six months, insiders have increased their overall holdings in the company by 2.72% and now own 71.44% of GTXI stock.

Analyst Upgrades

• Baird upgraded C.H. Robinson (CHRW) to outperform from neutral and has a $67 target on the stock. The firm upgraded shares citing growth opportunities given the capacity constrained environment.
• UBS upgraded Navistar (NAV) to buy from neutral, citing improved trucker preferences towards the company's engine technology.
• KeyBanc upgraded Crane (CR) to buy from hold based on valuation stabilization and potential upside in aerospace, among other reasons. The firm has a $39 target on the stock.
• United Therapeutics (UTHR) was upgraded to overweight from neutral at JPMorgan.
• Equifax (EFX) was upgraded to overweight from equal weight at Stephens.
• Brown & Brown (BRO) was upgraded to buy from hold at Citigroup.
  

Social networking giant Facebook, the largest such site in the U.S., recently has been urging users to update their privacy settings in connection with ongoing changes to the service. The changes coincide with the recent deal between Facebook and Internet search giant Google Inc. (GOOG) to bring data from the social network into the search engine as real-time data.

Many Facebook users are finding that parts of their profiles are now public, whether or not they want them to be. Facebook may share public information with software developers who build services for Facebook users. Concerns over privacy have prompted 10 privacy organizations, lead by the Electronic Privacy Information Center (EPIC), to file a complaint with the Federal Trade Commission (FTC).

Analyst upgrades:

• Keefe Bruyette upgraded KeyCorp (NYSE: KEY) to Outperform from Market Perform due to valuation and the company's capital position. The firm has an $8 target price on the stock.
• BofA/Merrill upgraded its view of the semiconductor sector and upgraded Intel (NASDAQ: INTC) and Marvell Technology (NASDAQ: MRVL) to Buy from Neutral, LSI Corp. (NYSE: LSI) to Buy from Underperform, and Maxim (NASDAQ: MXIM) and National Semiconductor (NYSE: NSM) to Neutral from Underperform. The firm now sees 2010 revenue growth of 21% vs. its prior estimate of 14% due to improving electric demand and lean inventories.
• Thomas Weisel upgraded Vital Images (NASDAQ: VTAL) to Overweight from Market Weight based on compelling valuation and potential upside from its new ViTAL Enterprise product offering.
• Jones Apparel (NYSE: JNY) was upgraded to Buy from Neutral at Goldman.
• Hess Corp. (NYSE: HES) was upgraded to Overweight from Equal Weight at Barclays.
• Nationwide Health (NYSE: NHP) was upgraded to Outperform from Market Perform at Morgan Keegan.

• KeyBanc upgraded Epicor (NASDAQ: EPIC) to Buy from Hold based on several near-term catalysts that include possible convertible debt repurchases, reasonable Q4 results, a proxy fight, and a boost from the Epicor 9 product cycle in 2H09.
  
• KeyBanc also upgraded AK Steel (NYSE: AKS) to Buy from Hold based on relative valuation and said the company could benefit from lower iron ore, scrap natural gas, and labor inputs.
  
• JP Morgan upgraded Lennar (NYSE: LEN) to Overweight from Neutral based on relative valuation.
• Marriott (NYSE: MAR) was upgraded to Buy from Neutral at Goldman.
  
• Raymond James (NYSE: RJF) was raised to Market Perform from Underperform at Wachovia.
  
• Deere (NYSE: DE) was upgraded to Outperform from Market Perform at Bernstein.

Analyst upgrades:

• Deutsche Bank upgraded shares of UBS (NYSE: UBS) to Buy from Hold following the company's Q3 update as they believe the quarter marks a turning point.
• Merill raised BP Plc (NYSE: BP) and Total SA (NYSE: TOT) to Neutral from Underperform.
• DISH Network (NASDAQ: DISH) was lifted to Hold from Sell at Soleil.
  
• Friedman Billings upgraded Sovereign Bancorp (NYSE: SOV) to Market Perform from Underperform as they believe the company's deposits are showing stability despite the massive sell-off.
  
• Kaufman Bros. raised Longtop Financial (NYSE: LFT) to Buy from Hold on valuation as they believe Chinese software service stocks now reflect the investment risks.
• Lear (NYSE: LEA) was upgraded to Hold from Sell at Citigroup.

• Morgan Stanley downgraded eBay (NASDAQ: EBAY) to Equal Weight from Overweight citing checks that indicate deteriorating trends are worst than expected.
  
• Juniper (NASDAQ: JNPR) and Pediatrix Medical (NYSE: PDX) were downgraded to Market Perform from Outperform at Morgan Keegan.
  
• Merrill cut StatoilHydro (NYSE: STO) to Underperform from Neutral.
  
• HSBC (NYSE: HBC) was lowered to Market Perform from Outperform at Keefe Bruyette.

Analyst upgrades

• Rodman & Renshaw upgraded shares of Amgen (NASDAQ: AMGN) to Outperform from Market Perform following the positive top line results from the FREEDOM study. The firm established an $80 target. Jefferies upgraded shares to Buy from Hold following the positive top-line efficacy and safety results for Denosumab in PMO as they view it as a "big win." The firm raised their target to $71 from $47.
• Best Buy (NYSE: BBY) was upgraded to Buy from Neutral at Banc of America.
  
• Goldman upgraded Kimberly Clark (NYSE: KMB) to Neutral from Sell and Dick's Sporting Good (NYSE: DKS) to Buy from Neutral.
  
• Rowan Companies (NYSE: RDC) was lifted at JP Morgan to Neutral from Underweight.

• Jesup & Lamont downgraded shares of Moog (NYSE: MOG.A) to Neutral from Buy on concerns of the company's high rate of R&D and its relative valuation. Keefe Bruyette downgraded shares of Federated Investors to Market Perform from Outperform following the company's lower than expected Q2 results and cut their target to $35.
  
• Ryanair (NASDAQ: RYAAY) was cut to Hold from Buy at Citigroup.

• Morgan Joseph believes Amgen (NASDAQ: AMGN)'s positive FREEDOM trial results will have a profound and lasting impact on the company's growth but also on its scientific credibility. The firm initiated coverage with a Buy rating and $77 target.
• Piper assumed Ctrip.com (NASDAQ: CTRP) with a Neutral rating and Epicor Software (NASDAQ: EPIC) with a Buy rating and $8 target.
  
• Banc of America initiated Britannia Bulk (NYSE: DWT) with a Buy rating and $19 target.

Analyst upgrades:

• Jefferies upgraded shares of Ensco International (NYSE: ESV) to Buy from Hold on valuation as they find the company's long-term EPS growth and potential upside from the GOM/Mexico jack-up market compelling.
  
• Friedman Billings upgraded Juniper (NASDAQ: JNPR) to Outperform from Market Perform following the better-than-expected Q2 report. The firm raised Juniper's target to $29 from $27.
  
• Friedman Billings upgraded shares of Southwestern Energy (NYSE: SWN) to Outperform from Market Perform on valuation following the recent weakness. Southwestern's target was raised to $43 from $40.
• Chipotle Mexican Grill (NYSE: CMG) was upgraded to Neutral from Underperform at Merrill.
  
• Merrill also upgraded Delta (NYSE: DAL) to Buy from Neutral.

• Baird downgraded Crocs (NASDAQ: CROX) to Neutral from Outperform following the company's weak Q2 report and guidance.
• Merriman cut Nautilus Group (NYSE: NLS) to Sell from Neutral to reflect the company's dependence on the consumer home fitness market at a time when consumer spending trends are weakening. The firm believes shares are overvalued and could potentially decline to the $4.00-$4.50 level.
• E.W. Scripps (NYSE: SSP) was downgraded at JP Morgan to Neutral from Overweight.
  
• HSBC lowered Daimler AG (NYSE: DAI) to Neutral from Overweight.
  
• Epicor Software (NASDAQ: EPIC) was downgraded to Hold from Buy at KeyBanc.

Altera (NASDAQ: ALTR) is up almost 10% on good earnings news.

IBM (NYSE: IBM) is up 2% on a strong quarter and raised guidance.

Nokia (NYSE: NOK) is down 10% after missing analyst forecasts for its quarter.

Epicor Software (NASDAQ: EPIC) is off over 14% on lower guidance.

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

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